Module 8
List how to protect storage media from security screening equipment.
-back up files on device before arriving to airport -ask security to inspect by hand
List tips for using credit cards safely.
-draw line through blank areas on check -keep records -save receipts -cover keypad while entering PIN
Explain the ethical issues surrounding government search and seizure of computers.
-government does have the right to search anyone owning a computer in the United States, but can get controversial -can do it without reason -some believe government should be able to inspect hardware but not contents of memory or hard disk
List advantages and disadvantages of SSDs versus magnetic hard disks.
-higher storage capacity -faster access time -faster transfer rates -quieter operation -more durable -lighter weight -less power consumption -less heat generation -longer life
Differentiate between storage and memory and describe how they interact.
-items on a storage medium remain intact even when you turn off a computer or mobile device. It is nonvolatile. -most memory holds data and instructions only temporarily. It is volatile.
Explain how you can restore deleted files and erased media.
-recycle bin/trash recovery -freeware programs you can download -commercial data recovery programs available at retail stores
Explain the ethical issues surrounding ownership of cloud data.
-should be responsibility of owner to remove and destroy company data before a contract expires. -ownership of data should be included in any contract between business and cloud storage provider.
Which of the following statements is not true about hard drives?
A hard disk that is mounted inside the system unit is sometimes called a permadisk.
SAN (storage area network)
A high-speed network with the sole purpose of providing storage to other attached servers.
storage area network (SAN)
A high-speed network with the sole purpose of providing storage to other attached servers.
thumb drive
A portable flash memory storage device that you plug in a USB port. Also called USB flash drive.
What causes a head crash on a hard disk?
A read/write head touches the surface of a platter.
external hard drive
A separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device.
network attached storage (NAS)
A server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network. Also called storage appliance.
Many software makers provide free downloadable updates, sometimes called an _____ to users who have registered and/or activated their software.
A service pack
outsourcing
The practice of off-loading some or all storage management to an outside organization or a cloud storage provider.
ripping
The process of copying audio and/or video data from a purchased disc and saving it on your own media.
formatting
The process of dividing the disk into tracks and sectors so that the operating system can store and locate data and information on the disk.
writing
The process of transferring data, instructions, and information from memory to a storage medium.
reading
The process of transferring these items from a storage medium into memory.
burning
The process of writing on an optical disc.
What occurs during a head crash?
The read/write head touches the surface of a platter.
Because the user access files on cloud storage through a browser using an app form the storage provider, the actual media on which the files are stored are transparent to the user.
True
Blue-ray players are backwards compatible with DVD and CD formats.
True
Desktops and traditional laptops usually have an optical disc drive.
True
EIDE is an interface that uses parallel signals to transfer data, instructions, and information.
True
Each IDE header on a motherboard can support up to two IDE devices.
True
Every installed device requires a device driver to control the device.
True
Geofencing enables your phone to send or receive notifications when you enter or exit a geographic location.
True
HDTV is the most advanced form of digital devices.
True
Hard disks are read/write storage media
True
Hard disks are read/write storage media.
True
Hard drives and flash memory storage use direct access storage techniques.
True
If thrashing occurs, try to exit the program. If that does not work, try a warm boot and then a cold boot.
True
If you connect the floppy cable in the wrong direction, the floppy drive light stays on continuously.
True
In RAID level 1, a backup file disk exists for each drive.
True
In addition to the ball, a trackball usually has one or more button that work like mouse buttons.
True
Laser printers typically print at faster speeds than ink-jet printers.
True
Most magstripe readers are separate devices that communicate with a POS terminal.
True
Multiple processors can be installed in a single processor housing.
True
NFC is a technology that uses close-range radio signals to transmit data between devices or a device and a tag.
True
OEM stands for original equipment manufacture.
True
Open source has no restrictions form the copyright holder regarding modifications of the software's internal instructions.
True
Open source software has no restrictions form the copyright holder regarding modifications of the software's internal instructions.
True
Outsourcing is when an enterprise offloads storage management to an outside organization or cloud storage provider.
True
Some operating systems allow users to control a network and administer security.
True
The computer may run slower while it uses virtual memory.
True
The defragmentation process reduces the amount of time it takes the hard disk to locate and access the files necessary for programs to run.
True
The quality of a scanner is measured by its resolution.
True
The read/write head on a magnetic hard drive is at both the top and bottom of each disk.
True
The start-up process is similar for large and small computers and mobile devices.
True
The total number of items that can be stored on a gigabyte will vary, depending on file size, quality of media.
True
The transfer of rate of external hard drives usually is slower than that of internal hard drives.
True
The transfer rate of external hard drives usually is slower than that of internal hard drives.
True
The trend is toward device-independent operating systems.
True
Today's DIMMs use a 64-bit data path.
True
Two types of smart cards are contact and contactless.
True
Uses of RFID include tracking times of runners in a marathon and checking out library books.
True
Virtualization is the practice of sharing or pooling computer resources, such as servers or storage devices.
True
You should not remove a flash memory storage while it is in use because the operating system may still be accessing the device.
True
You should not remove a portable flash memory storage while it is in use because the operating system may still be accessing the device.
True
macOS is a UNIX-based operating system.
True
head crash
Type of hard disk failure that occurs when a read/write head touches the surface of a platter.
optical disc
Type of storage medium that consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser.
Power users often work with ____ because of its flexibility and capabilities.
UNIX
Thumb drive is another term for a(n) ______.
USB flash drive
Thumb drive is another term for:
USB flash drive
SAS (serial-attached SCSI)
A type of SCSI that uses serial signals to transfer data, instructions, and information.
serial-attached SCSI (SAS)
A type of SCSI that uses serial signals to transfer data, instructions, and information.
microSDXC or SDXC
A type of memory card - Secure Digital Expanded Capacity
microSDHC or SDHC
A type of memory card - Secure Digital High Capacity
miniSD
A type of memory card, also called micro SD
xD Picture Card
A type of memory card, typically used with digital cameras
Which type of expansion slot uses a retention mechanism to help stabilize a heavy card?
AGP
Two types of operating system user interfaces are graphical and:
Command-line
CF
Compact Flash: A type of memory card.
common types of memory cards
CompactFlash, Secure Digital High Capacity, Secure Digital Expanded Capacity, miniSD, microSD, microSDHC, micro SDXC, xD Picture Card, Memory Stick PRO Duo, and Memory Stick Micro
platter
Component of a hard disk that is made of aluminum, glass, or ceramic and is coated with an alloy material that allows items to be recorded magnetically on its surface.
Which of the following is NOT recommended for safe credit card use?
Avoid using cards with photos.
After you install a processor, you should check the _____________ to verify that the system recognized the processor correctly.
BIOS setup
skimming
Crime in which thieves use a handheld device to swipe someone's credit or smart card and then obtain and store account details.
storage device
Device that records (writes) and/or retrieves (reads) items to and from storage media.
A _____ backup copies only the files that have changed since the last full backup.
Differential
Which of the following is a requirement for supporting the Aero user interface?
DirectX 9 or higher
Describe the contributions of Al Shugart, with respect to storage.
Disk Drive Industry
On computers running macOS, the _____ contains icons to run apps, display minimized windows, and access documents.
Dock
EIDE
Enhanced Integrated Drive Electronics; interface that uses parallel signals to transfer data, instructions, and information.
eSATA
External SATA; interface used with external drives and that is much faster than USB.
RFID is more secure than contactless smart cards.
FALSE
You should defragment SSDs frequently because the location of the stored data has a significant impact on its access times
FALSE
tape library
Facility where individual tape cartridges are mounted in a separate cabinet.
A 32-bit driver can be used in a 64-bit operating system.
False
A live webcam has the illusion of moving images because it sends a continual stream of still images.
False
A multiuser operating system processes all tasks on a first-come, first-served basis.
False
A storage medium is also called primary storage.
False
An ink-jet printer is a type of impact printer.
False
An operating system must be installed on a hard drive. It cannot run from a USB flash drive or other media.
False
Apple uses the term, iPAD, to refer to the touchpad on its laptops.
False
RAID is an acronym for ______.
Redundant Array of Independent Disks. definition: a group of two or more integrated hard disks -an ideal storage solution in situations where uninterrupted access to the data is critial.
RAID
Redundant array of independent disks; a group of two or more integrated hard drives.
Because of convergence, as well as the increased reliance on mobile devise for communications and productive function of mobile and desktop operating systems are becoming more similar.
False
Continous data protection is widely used by home and small business users.
False
DDR memory is faster than GDDR memory since it is used by the CPU.
False
If using a webcam, keep it connected to the computer when not in use so that you can control access to it.
False
If you are using a Mac and accidentally delete a file from the hard drive and need to recover it, look in the Recycle Bin.
False
In an optical disc, the absence of light is read as binary digit 1.
False
Items stored in RAM reamin intact even when you turn off a computer or mobile device.
False
Items stored in RAM remain intact even when you turn off a computer or mobile device.
False
Linux is proprietary software.
False
Not all computers and mobile devices have an operating system.
False
Operating systems on embedded computers use a multitasking operating system.
False
Perpendicular recoding aligns the magnetic particles horizontally around the surface of the hard disk.
False
SSDs typically have a higher storage capacities than hard disks.
False
SSDs typically have higher storage capacities than hard disks.
False
The 2.5" size hard drive is typically used in devices such as MP3 players.
False
The 80-conductor IDE cable has 80 pins and 40 wires.
False
The chips in RFID tags usually can function as a processor.
False
The kernel is an example of a nonresident instruction.
False
The official standard for USB interfaces is called IEEE 1394.
False
The two major manufacturers of processors are Intel and NVIDIA.
False
When installing a processor, you must line up the red circle on the processor with the right-angle mark on the motherboard.
False
With a personal cloud, your files are stored on a server on the Internet that stores only just your files and is maintained by a cloud storage provider.
False
With a personal cloud, your files are stored on a server on the Internet that stores only just your files and is maintained by a cloud storage.
False
With bluetooth printing, the computer and printer need to be aligned with each other.
False
incremental backup
Fastest backup method that requires minimal storage space to back up because only most recent changes are saved. (or) Backup method that copies only the files that have changed since the last full or incremental backup.
_____ is the operating system used by Amazon Kindle tablets.
Fire OS
Which interface is not typically used for an internal tape drive?
FireWire
Which of the following is true about the FireWire standard and devices?
FireWire devices are hot-swappable
_____ consist of ROM chips or flash memory chips that store permanent instructions.
Firmware
Which of the following is a good practice to follow to avoid scratching or damaging a disc like the one in the accompanying figure?
Hold the disc by its edges.
Which of the following best describes the term, redundancy, as it pertains to enterprise businesses?
If one hardware component fails or malfunctions, another can assume its tasks
Fibre Channel (FC)
Interface often used in enterprise storage because it has much faster transmissions rates than SCSI and other interfaces.
DVD-ROM:
Is a high capacity optical disc on which users can read but not write or erase.
Performance monitor:
Is a program that assesses and reports information about various computer resources and devices.
External Hard Drive:
Is a separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device.
Label printer:
Is a small printer that prints on adhesive-type material that can be placed on a variety of items.
CD-R:
Is an optical disc on which users can write once, but not erase.
Which of the following is NOT true about operating systems.
It is not possible to run more than one operating system on the same computer.
Which of the following is NOT true about operating systems?
It is not possible to run more than one operating system on the same computer.
Which of the following is NOT true about caring for optical discs?
Moisten a nonabrasive cloth with warm water and ammonia to clean the disc.
______ transforms one video image into another image over the course of several frames of video.
Morphing
megabyte (MB)
One million characters.
multisession
Optical disc that can be written on more than once, allowing users to save additional data on the disc at a later time.
mini disc
Optical disc used in some game consoles and mobile devices that has a diameter of 3 inches of less.
memory card
Removable flash memory, usually no bigger than 1.5 inches in height or width, that you insert and remove from a slot in a computer, mobile device, or card/reader writer.
Which of the following is true about disk drive interfaces?
PATA allows for two connectors on a motherboard
Which slot type would you install a video card in to get the best performance?
PCI - e
With ______, you touch a stylus or digital pen on a flat surface to write, draw, or make selections.
Pen input
Optical discs store items by using microscopic ______ (indentations) and ______ (flat areas).
Pits/lands
The operating system sometimes is called the:
Platform
jewel case
Protective case for storing optical discs.
Which display technology was developed by Apple, produces vibrant colors, and supports viewing from all angles?
Retina Display
What are the four possible configurations for a drive that is installed in a system with four EIDE devices?
Secondary IDE channel, slave device
Which of the following is NOT true about protecting your credit cards from scanning devices?
Security experts recommend placing each of your credit cards in separate locations, rather than stacking.
Tape storage requires ______ access, which refers to reading or writing data consecutively.
Sequential
___________________ access makes recovering files slow and inconvenient when using tape drives.
Sequential
SAS is a type of SCSI that uses _____ signals to transfer data, instructions, and information.
Serial
SATA
Serial Advanced Technology Attachment; interface that uses serial signals to transfer data, instructions, and information.
A SAN is a high-speed network with he sole purpose of providing storage to theory attached:
Servers
A SAN is a high-speed network with the sole purpose of providing storage to other attached _____.
Servers
What does a disk's form factor describe?
Size
SCSI
Small Computer System Interface; interface that uses parallel signals and can support up to 8 or 15 peripheral devices.
The ______ process sends documents to be printed into a buffer instead of sending them immediately to the printer.
Spooling
Which of the following does NOT typically use portrait orientation?
Spreadsheets
hard disk drive (HDD)
Storage device that includes one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information.
longitudinal recording
Storage technique in which magnetic particles are aligned horizontally around the surface of the disk.
perpendicular recording
Storage technique in which magnetic particles are aligned vertically, or perpendicular to the disk's surface, making much greater storage capacities possible.
Some RAID levels use ______, which splits data, instructions, and information across multiple drives in the array.
Stripping
The area of the hard drive used for virtual memory is called a _____ file.
Swap
Depending on the card, manufacturers claim memory cards can last from 10 to 100 year
TRUE
NFC tag
Tag that contains a chip and an antenna that contains information to be transmitted.
RFID tag
Tag that includes an antenna and a memory chip that contains the information to be transmitted via radio waves.
A(n) ______ drive is comparable to a cassette recorder.
Tape
access time
The amount of time it takes a storage device (1) to locate an item on a storage medium or (2) to deliver an item from memory to the processor.
If you are adding a hard drive to a system that already has a drive with Windows installed on it, which of the following is true?
boot Windows and use Disk Management to prepare the new drive
What is the most likely result of a correctly installed processor, but an incorrectly installed cooler?
boot process begins, but system suddenly turns off after a short period
how does an optical disc store items?
by using microscopic pits and lands that are in the middle layer of the disc
LightScribe technology
can etch labels directly on the specially coated discs
Which of the following is true about cleaning and fixing scratches on an optical disc?
can of compressed air upright while blowing excess dust off of the surface.
Which of the following terms is the number of bytes (characters) a storage medium can hold?
capacity
______ is the number of bytes (characters) a storage medium can hold.
capacity
Which type of monitor withstands a lot of handling, use mercury, and take up the most desk space?
cathode-ray tube
What are two important facts about USB connections?
a motherboard can support up to four EIDE devices
Which of the following is true about installing a new device?
a mouse may not require an additional device driver installation
memory card
a removable flash memory storage device that you insert in and remove from a slot in a computer, mobile device, or card reader/writer
What kind of storage is an Internet service that provides storage to computer or mobile users?
cloud
optical disc
a type of storage medium that consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser
Which of the following kinds of RFID tags contains a battery that runs the chip's circuitry and broadcasts a signal to the RFID reader?
active
Which of the following is true about installing a processor on a motherboard?
after placing the processor in the socket, you need to lock down the lever
longitudinal recording
aligns the magnetic particles horizontally around the surface of the disk
perpendicular recording
aligns the magnetic particles vertically or perpendicular to the disk's surface, making much greater storage capacities possible
enterprise hardware...
allows large organizations to manage and store data and information using devices intended for heavy use, maximum efficiency, and maximum availability
selective backup/partial backup
allows the user to choose specific files to backup, regardless of whether or not the files have changed since the last incremental backup
Define: smart card
alternative to a magnetic stripe card, stores data on an integrated circuit embedded in the card. Contact and contactless.
Which of the following is NOT a feature of a processor?
amount of CMOS
smart card
an alternative to a magnetic stripe card that stores data on an integrated circuit embedded in the card
Small Computer System Interface (SCSI)
an interface that also uses parallel signals, but can support up to 8 or 15 peripheral devices
Fibre Channel technology
an interface that enterprises use that connects the devices to the network because FC technology has much faster transmission rates than other interfaces
Enhanced Integrated Drive Electronics (EIDE)
an interface that uses parallel signals to transfer data, instructions, and information
cloud storage
an internet service that provides storage to computer or mobile device users
Which of the following kinds of backup is another name for a full backup?
archival
You are looking for the best protection against data loss. Which of the following will you use?
archival backup
You want a form of backup that copies all program and data files. Which of the following will you use?
archival backup
List advantages of cloud storage.
cloud storage: Internet service that provides storage to computer or mobile device users. -access Internet files from any computer or device -storage large audio/video -access files on Internet so others can also access -store off site backups of data
Which of the following is true about DIMM slots?
color coding is used to identify the channel
Describe the contributions of Seagate, with respect to storage solutions.
company based off of data storage
solid-state media
consist of entirely of electronic components and contain no moving parts
disk cache/buffer
consists of a memory chip on a hard disk that stores frequently accessed data, instructions, and information
controller
consists of a special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a drive to and from the system bus and other components inside the computer
RFID tag
consists of an antenna and a memory chip that contains the information to be transmitted via radio waves
two types of smart cards
contact (chip reader) and contactless (uses radio frequency)
Describe the storage techniques that make DVD storage higher capacity than CD storage.
contains Blu-Ray, which has a higher capacity and better quality than standard DVDs, especially for HD audio and video
Which of the following is a type of backup you can only perform at your large enterprise?
continuous
Which of the following consists of a special-purpose chip and electronic circuits that govern the transfer of data, instructions, and information from a drive to and from the system bus and other components in the computer?
controller
Explain the role of the controller for transferring data from a drive to the computer components.
controller: consists of a special purpose chip and electronic circuits that control the transfer of data, instructions, and information from a drive to and from the system bus and other components in the computer.
differential backup
copies only the files that have changed since the last full backup
incremental backup
copies only the files that have changed since the last full/last incremental backup
What do you need to do for Device Manager to display nonpresent devices?
create and set an environment variable
When writing or reading specific data, sequential access is much faster than direct access.
false
You can erase a DVD+R
false
You can erase a DVD+R.
false
You should defragment SSDs frequently because the location of the stored data has a significant impact on its access times.
false
solid-state drive
flash memory storage device that contains its own processor to manage its storage
Which of the following is a basic principle that applies to both internal and external devices?
for most installations, install the device first, then the device driver
Before any data can be read from or written on a hard disk, what must happen to the disk?
formatting
______ is the process of dividing a hard disk into tracks and sectors.
formatting
The speed at which the processor operates internally is called the processor ____________.
frenquency
Which of the following statements is NOT true when setting up dual channeling?
if you have two pairs installed in two channels, all four DIMMs must match
striping...
improves disk access times, but does not offer duplication
How do discs, like the one in the accompanying figure, commonly store items?
in a single track that spirals from the center of the disc to the edge of the disc
examples of storage media
internal hard disks, external hard disks, solid-state drives, memory cards, USB flash drives, optical discs, network attached storage devices, magnetic stripe cards, smart cards, RFID tags, and microfilm
You are looking for a term that can be used to refer collectively to hard disks and SSDs inside a computer. Which of the following can you use?
internal hard drives
a track
is a narrow recording band that forms a full circle on the surface of the disk
magnetic stripe card
a credit card, entertainment card, bank card or other similar card with a stripe that contains information identifying you and the card
card reader/writer
a device that reads from and writes on memory cards
What happens when a flash memory card is installed in a slot and it is recognized by Windows?
a drive letter is assigned to the device and you can see it in Explorer
USB flash drive/thumb drive
a flash memory storage device that plugs into a USB port on a computer or mobile device
What best describes an optical disc?
a flat, round portable disc that is written and read by a laser
fixed disk
a hard disk that is mounted inside a desktop or laptop
Which of the following cloud services does Carbonite provide?
back up files
A gigabyte is approximately 1 ______ bytes.
billion
a gigabyte is ________ bytes
billion
A ________________ device inputs data about a person which might include fingerprints and voice.
biometric
A ________________ disc can hold data in two layers on each side, for a total of four layers on one disc.
bluray
storage area network (SAN)
a high-speed network with the sole purpose of providing storage to other attached servers
Items on a storage medium remain intact even when power is removed from the computer. What term describes this characteristic?
nonvolatile
storage medium is...
nonvolatile
life span of an optical disc
normally 5 years, but could last up to 100
a head crash
occurs when a read/write head touches the surface of a platter, usually resulting in a loss of data or sometimes the loss of the entire disk
outsourcing
off-load all storage management to an outside organization or cloud storage provider
Which of the following interfaces sends several bits at once?
parallel
Which of the following kinds of backup is another name for a selective backup?
partial
The __________________ family of AMD processors has processors that run up to 3.2 GHz, have up to 6 cores, and use the AM3 socket.
phenom
Optical discs store items by using microscopic ______ (indentations) and ______ (flat areas).
pits/lands
Optical discs store items by using microscopic indentations called _______, and flat areas called _______.
pits; lands
Which monitor characteristic is the distance between adjacent dots on the screen?
pixel pitch
external hard disk
separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device
Tape storage requires ______ access, which refers to reading or writing data consecutively.
sequencial
Which of the following kinds of access refers to reading or writing data consecutively?
sequential
full backup/archival backup
provides the best protection against data loss because it copies all program and data files
The top and bottom of each disk in a magnetic hard drive have a _______________ that moves across the disk surface.
read write head
Which of the following is the mechanism that reads and writes items in the drive as it barely touches the disk's recording surface?
read/write head
______ is the process of transferring items from a storage medium into memory.
reading
tape drive
reads from and writes on magnetic tape
RAID
redundant array of independent disks (a group of two or more integrated disks)
sequential access
refers to reading or writing data consecutively (used by tape storage)
A DIMM that holds data and amplifies a signal before the data is written to the module uses which technology?
registers
rpm
revolutions per minute
A popular use of CD-RW and CD-R discs is to create audio CDs. What is the process of copying audio and/or video data from a purchased disc and saving it on digital media called?
ripping
If a driver update creates a problem, you can __________________ the driver update if the previous drivers were working.
roll back
Why would you use a round PATA ribbon cable instead of traditional flat cable?
round cables obstruct air flow less inside the case
Differentiate between sequential and direct access.
sequential: refers to reading or writing data consecutively. direct: device can locate a particular data item or file immediately, without having to move consecutively through items stores in front of the desired data item or file
How is data stored on magnetic tape?
sequentially
SAS is a type of SCSI that uses ______ signals to transfer data, instructions, and information.
serial
Which of the following kinds of interfaces sends data one bit at a time?
serial
A SAN is a high-speed network with the sole purpose of providing storage to other attached ______.
servers
A standard CD-ROM is referred to as this kind of disc because manufacturers write all items on the disc at one time. What is the term used?
single-session
a standard CD-ROM
single-session disc
What does a disk's form factor describe?
size
sectors
small arcs that come from the tracks being broken by wedge-shaped sections
Which of the following kinds of cards stores data on an integrated circuit embedded in the card?
smart
Which of the following can be used to store a prepaid amount of money, such as for student purchases on campus?
smart cards
Which of the following is NOT true about hard disk drives?
sold state drives are less expensive than magnetic hard drives
Define: SSD. List devices that use SSDs.
solid state drive: flash memory storage device that contains its own processor to manage its storage
types of flash memory storage
solid-state drives, memory cards, and USB flash drives
flash memory chips are..
solid-state media
backup plan
specifies regular schedule for copying and storing important data, information, apps, and programs
striping
splits data, instructions, and information across multiple discs in the array
Which of the following devices is the computer hardware that records and/or retrieves items to and from a flash drive or external hard drive, for example?
storage
Define: outsourcing (as it relates to enterprise computing)
storage management to an outside organization or a cloud storage provider
Which of the following might be the cause of a black screen right after you install a new video card?
the onboard video is not disabled in BIOS
formatting
the process of dividing the disk into tracks and sectors so that the operating system can store and locate data and information on the disk
writing
the process of transferring data, instructions, and information from memory to storage medium
reading
the process of transferring these items from a storage medium into memory
access time
the speed of storage devices and memory
transfer rate
the speed with which data, instructions, and information transfer to and from a device
The use of microfilm and microfiche provides all of the following advantages EXCEPT ___
they can be read without a reader
A kilobyte is approximately 1 ______ bytes.
thousand
Why might you want to use a RAID 0 disk configuration?
to improve overall disk performance
What is the term for a narrow recording band that forms a full circle on the surface of a hard disk?
track
What is being measured using KBps, MBps, and GBps?
transfer rate
When storage devices write data, instructions, and information on storage media, they are creating output. What best describes the process of writing data?
transferring items from memory to a storage medium
A terabyte is approximately 1 ______ bytes.
trillion
A hard disk's platters may continue to spin even after power is removed from the computer.
true
A level 1 configuration enhances storage reliability because, if a disk should fail, a duplicate of the requested item is available within the array of disks.
true
A popular use of CD-RW and CD-R discs is to create audio CDs.
true
A storage area network includes only storage devices.
true
Although current internal hard disks are built to withstand shocks and are sealed tightly to keep out contaminants, head crashes still occur.
true
Blu-ray players are backwards compatible with DVD and CD formats.
true
DVD-R and DVD+R are competing DVD-recordable formats.
true
Disconnecting a USB flash drive while it is in use may cause damage to the files stored on the device.
true
EIDE is an interface that uses parallel signals to transfer data, instructions, and information.
true
Instead of, or in addition to, access time, some manufacturers state a storage device's transfer rate because it affects access time.
true
One reason users store data and information using cloud storage is to view time-critical data and images immediately while away from a main office or location
true
One reason users store data and information using cloud storage is to view time-critical data and images immediately while away from a main office or location.
true
Some DVDs are double-sided.
true
T/F An optical disc typically stores data, instructions, and information in a single track that spirals from the center of the disc to the edge of the disc.
true
T/F Desktops and traditional laptops usually have an optical disc drive.
true
T/F Hard drives and flash memory storage use direct access storage techniques.
true
T/F In RAID level 1, a backup disk exists for each drive.
true
T/F NFC is a technology that uses close-range radio signals to transmit data between devices or a device and a tag.
true
T/F The total number of items that can be stored on a gigabyte will vary, depending on file size, quality of media, and other factors.
true
The chips in RFID tags usually are read only
true
The defragmentation process reduces the amount of time it takes the hard disk to locate and access the files necessary for programs to run.
true
To meet their large-scale needs, enterprises use special hardware geared for heavy use.
true
Define: optical disc. List formats of optical discs.
type of storage medium that consists of a flat, round, portable disc made of metal, plastic and lacquer that is written and read by a laser.
Thumb drive is another term for a(n) ______.
usb flash drive
Enterprise storage devices often use _____, which duplicates data to improve its relability.
use Fibre Channel (FC) technology as the interface that connects devices to the networks
Serial Advanced Technology Attachment (SATA)
uses serial signal to transfer data, instructions, and information
multisession
you can write on part of the disc at one time and another part a later time, if the disc has free space
USB technology is much faster than the eSATA interface.
false
When storage devices write data on storage media, they are creating input.
false
What does NAS stand for?
network attached storage
CD-ROM
(read-only memory) a type of optical disc that users can read, but not write on or erase.
CD-R
(recordable) a type of optical disc on which users can write once, but not erase, their own items (text, graphics, audio)
CD-RW
(rewritable) a type of optical disc that is an erasable multisession disc that users can write on multiple times
Data collection device:
Obtains data directly at the location where the transaction or event take place.
Name uses of cloud storage. Explain criteria for evaluating cloud storage providers.
-Synchronize files: Dropbox, Google Drive -Write documents: google drive; edit online -back up your computer: automatically to the cloud -stream music from online source -post photos to online source -play games from an online source -evaluating providers
gigabyte
1 billion
megabyte
1 million
petabyte
1 quadrillion
exabyte
1 quintillion
yottabyte
1 septillion
zettabyte
1 sextillion
kilobyte
1 thousand
terabyte
1 trillion
terabyte (TB)
1 trillion bytes.
Access time measures:
1) The amount of time it takes a storage device to locate an item on a storage medium 2) The time required to deliver an item from memory to the processor.
CDs are available in three formats
1. CD-ROM 2. CD-R 3. CD-RW
List steps for cleaning and fixing scratches on optical discs.
1. clean disc. 2. back up data on disc. 3. place small amount of rubbing compound on nonabrasive cloth and rub from the center outward at location of scratch. 4. test the disc.
Explain how to eject removable storage media safely.
1. close any files or exit any programs that are opened. 2. open window displaying all the drives on your computer. 3. tap to select drive you want to remove. 4. remove or eject drive. 5. wait for notification.
List steps for installing an internal hard drive. Describe how to transfer files from one internal hard drive to another.
1. place new internal hard drive in correct location. 2. connect cables and tighten screws to secure in place. 3. replace computer cover. reconnect power. replace battery if necessary. 4. turn on computer. insert installation media.
Explain how to encrypt files.
1. run program or access feature you will use to encrypt file. 2. select file you want to encrypt. 3. specify password. 4. review program or operating system's documentation. 5. start encryption process.
access time measures
1. the amount of time it takes a storage device to locate an item on a storage medium 2. the time required to deliver an item from memory to the processor
How much data does a 3.5" floppy disk drive hold?
1.44 MB
life span on a memory card?
10 to 100 years with proper care
What is the transfer rate of a 64-bit module running at 1600 MHz?
12800 MB/ second
What do discs, like the kind shown in the accompanying figure, usually measure?
4.75 inches in diameter and less than one-twentieth of an inch thick
Which type of cable is required by ATA/66 and above?
40 pins, 80 wires
Which of the following describes USB 2.0?
480 Mbps, cable length up to 5 meters
how much data can a sector typically store on a hard disk?
512 bytes
Which of the following is not true about tape storage?
A benefit of tape is that it allows for nonsequential access.
magnetic stripe card
A credit card, entertainment card, bank card, or other similar card with a stripe that contains information identifying you and the card.
Which of the following is NOT true about hard disks?
A desktop hard disk is much smaller than that of a laptop.
card reader/writer
A device that reads from and writes on memory cards.
Scanner:
A light-sensing input device that reads printed text and graphics and then translates the results into a form the computer can process.
tape
A magnetically coated ribbon of plastic that is capable of storing large amounts of data and information at a low cost.
Blu-ray
A more expensive DVD format that has a higher capacity and better quality than standard DVDs, especially for high-definition audio and video.
tape cartridge
A small, rectangular, plastic housing for tape.
controller
A special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a drive to and from the system bus and other components in the computer. Formerly called a disk controller.
SSD (solid-state drive)
A storage device that typically uses flash memory to store data, instructions, and information, and that contains no moving parts. (or) Flash memory storage device that contains its own processor to manage its storage.
random access
Access method where a device can locate a particular data item or file immediately, without having to move consecutively through items stored in front of the desired data item or file. Also called direct access.
sequential access
Access method where data is read or written consecutively.
Explain what access time measures and how transfer rates are stated.
Access time measures the (1) amount of time it takes a storage device to locate an item on a storage medium, or the (2) time required to deliver an item from memory to the processor. Transfer rate is the speed with which data, instructions, and information transfer to and from a device. They are stated in KBps (Kilobytes per second), MBps, GBps.
If a problem occurs while Windows 7 is installing a device, it automatically launches the ________________________.
Action Center
Which of the following best describes the term bloatware?
Additional hardware and apps installed by an OEM.
Graphic tablet:
Also called a digitizer. An electronic plastic board that detects and converts movements of a style or digital pen into signals that are sent to the computer.
cloud storage
An Internet service that provides remote storage to computer users.
smart card
An alternative to a magnetic stripe card, stores data on an integrated circuit embedded in the card. Also called chip card.
Which of the following best defines the term cross-platform applications?
An application that runs the same way on multiple operating systems.
CD-RW:
An erasable multisession disc.
All of the following are examples of desktop operating systems EXECPT:
Android
Google Play is an example of an:
App store
DVD-R or DVD+R:
Are competing DVD-recordable WORM formats, on which users can write once but not erase.
DVD-RW or DVD+RW, and DVD+RAM:
Are competing DVD-rewritable formats that users can write multiple times.
The _____ radio defines a display's width relative to its height.
Aspect
VoIP is a type of _____ output.
Audio
In a multitasking operating system, _______ programs are running but not in use.
Background
selective backup
Backup method that allows the user to choose specific files to back up, regardless of whether or not the files have changed since the last incremental backup. Also called partial backup.
differential backup
Backup method that copies only the files that have changed since the last full backup. (or) Fast backup method that requires minimal storage space to back up.
archival backup
Backup method that provides the best protection against data loss because it copies all program and data files. Also called full backup.
A gigabyte is approximately 1 _____ bytes.
Billion
You have been having issues with your printer, so you decide to learn more about how the printer works. You learn that by spooling documents to a _____, the computer or mobile device can continue interpreting and executing instructions while the printer prints.
Buffer
redundancy
Built-in levels of duplicate components used in enterprise hardware that ensures that if one component fails or malfunctions, another can assume its tasks.
Which of the following is NOT a cloud storage provider that places a folder on your computer with contents you can synchronize across multiple devices?
CloudDrive
Which of the following is a multisession optical disc on which users can write, but not erase, their own items such as text, graphics, and audio?
CD-R
single-session disc
CD-ROM on which manufacturers write all items at one time.
Differentiate among CD-ROM, CD-R, and CD-RW discs.
CD-ROM: (CD read only memory) type of optical disc that users can read but not write on or erase. Single-session disc. CD-R: (CD-recordable) optical disc on which users can write once, but not erase, their own items, such as text, graphics and audio. WORM format (write once, read many) CD-RW: (CD-rewritable) erasable multi-session disc users can write on multiple times. Allows users to write and rewrite.
Which of the following overcomes the major disadvantage of CD-R disks, which is being able to write on them only once?
CD-RW
CD-ROM
CD-read-only memory; type of optical disc that users can read but not write on (record) or erase.
CD-R
CD-recordable; optical disc on which users can write once, but not erase, their own items, such as text, graphics, and audio.
CD-RW
CD-rewritable; erasable multisession disc users can write on multiple times.
photo CD
CDs that contain only photos.
three widely used types of optical discs
CDs, DVDs, and Blu-ray discs
Describe the contributions of Amazon and Jeff Bezos.
CEO of Amazon
CD-ROM:
Can be read but not written to.
______ is the number of bytes (characters) a storage medium can hold.
Capacity
_____ refers to the number of bytes a storage medium can hold. Identify terms manufacturers use to determine this.
Capacity Kilobyte: 1 thousand bytes ex: 750 GB can hold approximately 750 billion bytes.
Which Intel processor technology interconnects the processor, chipset, and wireless network adapter as a unit, improving laptop performance?
Centrino
user interface (UI):
Controls how you enter data and instructions and how information is displayed on the screen.
Which type of memory can support quad, triple, and dual channels?
DDR3
Why is DMA a better transfer mode than PIO for PATA drives?
DMA data transfer don't involve the CPU
Which type of memory is the main memory installed as DIMMs on a motherboard?
DRAM
Which of the following is not a competing rewritable DVD format?
DVD+R
Which of the following is a high-capacity optical disc on which users can read but not write or erase?
DVD-ROM
DVD-ROM
DVD-read-only memory; a high-capacity optical disc that users can read but not write on or erase.
DVD+R
DVD-recordable WORM formats, on which users can write once but not erase their own items, including video, audio, photos, graphics, and text.
DVD-R
DVD-recordable WORM formats, on which users can write once but not erase their own items, including video, audio, photos, graphics, and text.
DVD+RAM
DVD-rewritable formats that users can write on multiple times.
DVD+RW
DVD-rewritable formats that users can write on multiple times.
DVD-RW
DVD-rewritable formats that users can write on multiple times.
Which type of video port provides a digital-only signal?
DVI-D
Because of the Sarbanes-Oxley Act, companies have faced new requirements for what?
Data storage
______ pitch is the distance in millimeters between pixels on a display.
Dot
Printer resolution is measured by the number of _____ per inch a printer can print.
Dots
tape drive
Drive that reads from and writes on a magnetic tape.
A ____ is a small program that tells the operating system how to communicate with a specific device.
Driver
DIMMs used in servers can provide additional reliability if they use which of the following technologies?
ECC
List and describe interfaces for use in personal computers.Types of signals for each?
EIDE (enhanced integrated drive electronics): uses parallel signals to transfer data, instructions or information. provides connections for hard drives. SCSI (small computer system interface): parallel signals, can support up to 15 devices. SAS (serial-attached SCSI): type of SCSI that uses serial signals to transfer data, information and instructions. thinner, longer cables. SATA (serial advanced technology attachment): serial signals to transfer data, instructions and information
______ feedback is a technology that sends resistance tot he gaming device in response to actions of the user.
Force
____ is the process of dividing a hard dis into tracks and sectors.
Formatting
______ is the process of dividing a hard disk into tracks and sectors.
Formatting
______ is the process of dividing a hard disk into tracks and servers.
Formatting
A _____ is a virtual perimeter or boundary that disables certain apps or cameras in secure areas.
Geofence
Motion input sometimes is called _____ recognition.
Gesture
GBps
Gigabytes per second.
_______________ wireless communication technology requires an unobstructed line of sight between transmitter and receiver
Infrared
gigabyte (GB)
One billion characters.
Commonly used input methods include:
Keyboard, Pointing devices, Touch screens, Pen input, Motion input, Voice input, Video input, Scanners and reading devices.
KBps
Kilobytes per second.
CAS _____________ measures memory access timing.
Lantency
Janice is trying to decide between Windows or macOS for her new desktop computer. Since you have desktops that run both at home, she ask you for advice. When describing the macOS interface, you tell her that she can use the ____ to view, organize, and run apps.
Launchpad
Sarbanes-Oxley Act (SOX)
Law that provides financial reporting requirements and guidelines for public companies' retention of business records.
Which type of processor memory is located on the processor chip (processor die)?
Level 1 cache
What technology works with specially coated optical discs to etch labels directly on the disc?
LightScribe
Credit cards are a type of ______ stripe card.
Magnetic
A File _____ performs functions related to displaying and organizing files.
Manager
A standard CD-ROM is called a single-session disc. Why are they called single-session discs?
Manufacturers write all items on the disc at one time.
solid-state media
Media that consist entirely of electronic components, such as integrated circuits, and contain no moving parts.
MBps
Megabytes per second.
M2
Memory Stick Micro: A type of memory card.
OneDrive is a cloud server from:
Microsoft
A megabyte is approximately 1 ______ bytes.
Million
The simplest RAID storage design writes data on two drives at the same time and is called:
Mirroring
_________________________ is the ability of a processor to execute two instructions at the same time.
Multiprocessing
Differentiate between a NAS (storage) and an SAN (network).
NAS: (network attached storage) server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network. SAN (storage area network): high speed network with the sole purpose of providing storage to other attached servers. Includes only storage devices.
track
Narrow recording band that forms a full circle on the surface of the disk.
With a _____ user interface, users interact with the software through ordinary, intuitive behavior such as touch, gestures, and voice.
Natural
personal cloud
Networked hard drive connected directly to a router, allowing access to files over the Internet.
Creative Commons
Nonprofit organization that provides several standard licensing options that owners of creative works may specify when granting permission for others to use their digital content.
______ instructions remain on a storage medium until they are needed, at which time they transfer into memory.
Nonresident
Current ______ use a row of charged wires to draw an electronic pattern on a specially coated paper and the fuse toner to the paper.
Plotters
A group of two or more integrated hard disks is referred to as which of the following?
RAID
A group of two or more integrated hard drives is called a(n) ______.
RAID
A group of two or more integrated hard drives is called:
RAID
Some personal computer manufacturers provide a hard disk configuration that connects multiple smaller disks into a single unit that acts like a single large hard disk. What is this grouping called?
RAID
Which of the following kinds of devices duplicates data, instructions, and information to improve data reliability?
RAID
Which of the following is true about hardware RAID?
RAID controllers have their own BIOS
mirroring
RAID storage design that writes data on two disks at the same time to duplicate the data.. Also called level 1.
Which of the following storage devices typically has the fastest transfer rate?
RAM
Differentiate abetween active and passive RFID tags.
RFID tag: consists of an antenna and a memory chip that contains the information to be transmitted via radio waves active: contains battery that runs the chip's circuitry and broadcasts a signal to the RFID reader passive: does not contain a battery and cannot send a signal until the reader activates the tag's antenna by sending out electromagnetic waves
Which memory technology that is no longer used has a 32-bit data bus, 232 pins and requires a placeholder in empty slots?
RIMM
RFID:
Radio frequency identification, uses radio signals to communicate with a tag placed in or attached to an object.
______ is the process of transferring items from a storage medium into memory.
Reading
In situations when a boot disk is required to restart a computer or device, the boot disk is referred to as ____ media.
Recovery
Which hard drive technology is used to predict when a drive is likely to fail?
S.M.A.R.T.
You are looking to implement a high-speed network with the sole purpose of providing storage to other attached servers. Which of the following will you implement?
SAN
What kind of controller uses serial signals to transfer data, instructions, and information?
SATA
Which SATA standard provides a transfer rate of 3 Gb/sec?
SATA2
Which of the following is true about SCSI drives?
SCSI ID 7 has a higher priority than SCSI ID 10
Which of the following is true about DIMM technologies?
SDRAM runs synchronized with the system clock
Which type of removable storage media can provide up to 2 TB of storage?
SDXC
What technology in a DIMM informs the BIOS of the module's size, speed, voltage, and data path width?
SPD
A _____________________ has no moving parts and is built using nonvolatile memory, which is similar to that used for USB flash drives.
SSD
A(n) ______ is a flash memory storage device that contains its own processor to manage its storage.
SSD
You have been chosen to be a teaching assistant at your school. A student comes to you with questions about storage devices. The student asks you which type of storage device is best to store the operating system and applications. You tell her that a(n) ______ is a good option.
SSD
The term hard drive refers collectively to hard disks and ______.
SSD's
The term hard drive refers collectively to hard disks and:
SSDs
Which of the following is true of SSDs compared to traditional hard disks?
SSDs have faster transfer rates.
Which of the following is NOT true about SSDs?
SSDs have slower access time than hard disks.
Which of the following is NOT true about SSDs?
SSDs have slower access times than hard disks.
Which of the following provides a myriad of financial reporting requirements and guidelines for public companies?
Sarbanes-Oxley Act
An ______ is a light-sensing input device that reads printed text and graphics and then translates the results can process.
Scanner
striping
Splits data, instructions, and information across multiple drives in the array.
Original forms of data, such as time cards or order forms, are known as _____ documents.
Source
hard drive
Term used to refer collectively to hard disks and SSDs.
You have been chosen to be a teaching assistant at your school. A student comes to you with questions about storage devices. The student asks you to explain speed of storage devices and memory. You tell her that all of the following are true, except:
The access time of memory is slow compared with that of storage devices.
You have been chosen to be teaching assistant at your school. A student comes to you with questions about storage devices. The student asks you to explain speed of storage devices and memory. You tell her all of the following are true, EXCEPT:
The access time of memory is slow compared with that of storage devices.
secondary storage
The physical material on which a computer keeps data, information, programs, and applications.
Which of the following best defines what occurs when you partition a hard drive?
The hard drive is divided into separate logical storage areas that appear as distinct drives.
What icon might you see in Device Manager that indicates a problem with a device?
Yellow Triangle
What does a GPU control?
The manipulation and display of graphics on a display device.
read/write head
The mechanism that reads items and writes items in the drive as it barely touches the disk's recording surface.
density
The number of bits in an area on a storage medium.
capacity
The number of bytes (characters) a storage medium can hold.
revolutions per minute (rpm)
The number of times per minute that a hard disk platter rotates.
rpm (revolutions per minute)
The number of times per minute that a hard disk platter rotates.
Which of the following is NOT true about network security?
The operating system on a network does not record unsuccessful sign-in attempts.
What is meant by the term Plug and Play?
The operating system that automatically configures new devices as you install or connect them.
sectors
The small arcs into which tracks on a disk are divided.
transfer rate
The speed with which data, instructions, and information transfer to and from a device.
Which of the following best describes paging?
The technique of swapping items between memory and storage.
Label printers typically use _____ technology.
Thermal
Which of the following is NOT true about command-line interfaces?
They give you less control to manage detailed setting than a GUI.
Which of the following is NOT an advantage of external hard drives over internal hard drives?
They leave data in the computer.
When an operating system spends much of its time paging, it is said to be ______.
Thrashing
Which of the following best describes the purpose of the Creative Commons?
To provide standard licensing options for owners of creative works.
A _____ key is one that switches between two states each time a user presses the key
Toggle
If you sweep your thumb on the mouse to scroll pages, you likely are using what type of mouse?
Touch
If you sweep your thumb on the mouse to scroll pass, you likely are using what type of mouse?
Touch
As it pertains to drives, which of the following best defines the purpose of a controller?
Transfer data, instructions, and information from a drive to and from the system bus and other components
As it pertains to drives, which of the following best defines the purpose of a controller?
Transfer data, instructions, and information from a drive to and from the system bus and other components.
A 2.1 speaker system contains two speakers and one subwoofer.
True
A DisplayPort is an alternative to DVI that also supports high-definition audio and video.
True
A KVM switch allows you to use one monitor, mouse, and keyboard for multiple computers.
True
A digital pen is an input device that captures and converts a user's handwriting or drawing into a digital format.
True
A performance is a program that assesses and reports information about various computer resources and devices.
True
A storage appliance has its own IP address.
True
After installing the processor, if the system begins the boot process and suddenly turns off before completing the boot, the processor is most likely overheating.
True
An optical disc typically stores data, instructions, and information in a single track that spirals from the center of the disc to the edge of the disc.
True
An optical disk typically stores data, instructions, and information in a single track that spirals from the center of the disc to the edge of this disc.
True
As the resolution increases, some items on the screen appear smaller.
True
A ______ machine enables you to install a second operating system on a computer.
Virtual
geofence
Virtual perimeter or boundary to disable certain apps or cameras in secure areas, such as labs or meeting rooms.
Which of the following is NOT true about voice input?
Voice recognition is also called talk recognition.
format of CD-R discs
WORM (write once, read many)
On devices running Windows (Mobile Edition), the ____ app provides a centralized locations for coupons, loyalty cards, and memberships.
Wallet
Which of the following is the largest from among the following?
YB
Identify questions to ask before deciding how to share media files. List examples of photo, video, and music sharing websites.
Where do my original files need to reside? What is the cost? Can I annotate my media? How do I access and share the files safely? What privacy rights are available? Online reviews? Help and website support?
WORM
Write Once, Read Many.
Which of the following cloud services does Evernote provide?
Write documents
Which of the following is NOT true about storage media and devices?
Writing is the process of transferring items from storage media to memory.
microfilm
a 100-215 foot roll of film
What should you install in a server room that will save space by allowing you to control multiple servers with a single mouse, keyboard, and monitor?
a KVM switch
What should you keep in mind when installing hard drives?
a PATA drive has master and slave settings
Which of the following is true about the USB standard and devices?
a USB cable has four wires, two for power and two for communication
network attached storage (NAS)
a server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network
microfiche
a small sheet of film, usually 4 by 6
tape cartridge
a small, rectangular, plastic housing for tape
hard disk
a storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information
Define: secondary storage. List types of storage media.
a storage medium. physical material on which a computer keeps data, information, programs, and applications. ex: internal hard disks, external hard disks, memory cards, etc.
RFID
a technology that uses radio signals to communicate with a tag placed in or attached to an object, an animal, or a person
serial-attached SCSI (SAS)
a type of SCSI that uses serial signals to transfer data, instructions, and information (it has thinner and longer cables than SCSI, reduced interference, lower cost, faster speeds, and support for many more connected devices at once)
When a user issues a command to run an application, the operating system locates the application in memory and loads it into storage.
false
Define: magnetic stripe card
credit card, entertainment card, bank card, with a stripe that contains information identifying you and the card
Which of the following is NOT a component of a processor?
device driver
A(n) ______ backup copies only the files that have changed since the last full backup.
differential
You are looking for a backup that copies only the files that have changes since the last full backup. Which of the following will you use?
differential backup
Explain the implications of the permanence of digitial content.
digital footprint -backed up on servers in multiple locations worldwide
You want a storage medium that allows you to locate a particular data item immediately, without having to move consecutively through items stored in front of the desired data item or file. What kind of access will this storage medium use?
direct
Some computers improve hard disk access time by using which of the following, which consists of memory chips that store frequently accessed items?
disk cache
Define: disk cache
disk cache: consists of memory chips on a hard disk that stores frequently accessed data, instructions, and information.
backup software
enables you to schedule backups, select the appropriate backup type, and choose the storage media for the backup
What is the term for the case that contains the same adapters found on a motherboard with which to connect the internal hard drive?
enclosure
Which term is used to describe large businesses that require special hardware geared for heavy use, and maximum availability and efficiency to fit the needs of their hundreds or thousands of workers?
enterprise
Which type of user is most likely to use a RAID?
enterprise
Which file system is used by large-capacity USB and memory cards?
exFAT
List sizes and storage capacities of different external hard disks.
external hard drive: separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device sizes and storage capacity can vary. smaller external hard drives are used to transport files and photos.
A DVD-RW is a high-capacity optical disc on which users can read but not write or erase.
false
A hard disk platter's spinning motion creates a cushion of air above the read/write head, which ensures that the read/write head makes contact with the platter surface instead of floating above the platter.
false
A screen display is considered nonvolatile because its contents disappear when power is removed.
false
All DVD-ROMs are single-sided
false
All computers can support multiple internal hard drives.
false
An active RFID tag cannot send a signal until the reader activates the tag's antenna by sending out electromagnetic waves
false
An allocation unit is the smallest unit of disk space that stores data and information.
false
As with a hard disk, the single track on an optical disc is divided into variably sized sectors on which items are stored.
false
Each part of a CD-R can be written on multiple times, and the disc's contents can be erased.
false
Enterprises cannot implement both network attached storage and storage area networks.
false
External hard drives never have greater capacities than internal hard drives.
false
Laptops with solid-state drives usually have a higher storage capacity than laptops with a traditional hard disk
false
Laptops with solid-state drives usually have a higher storage capacity than laptops with a traditional hard disk.
false
Manufacturers claim that a properly cared for CD or DVD will last 5 years, but could last up to 250 years.
false
On an optical disc, a land causes light to reflect, which is read as binary digit 0.
false
Optical discs should be stored in a flat (horizontal) position.
false
Perpendicular recording aligns the magnetic particles horizontally around the surface of the hard disk.
false
RAID levels are hierarchical.
false
RFID is more secure than contactless smart cards.
false
Reading is the process of transferring data, instructions, and information from memory to a storage medium
false
Reading is the process of transferring data, instructions, and information from memory to a storage medium.
false
T/F A storage medium is also called primary storage.
false
T/F In an optical disc, the absence of light is read as binary digit 1.
false
T/F SSDs typically have higher storage capacities than hard disks.
false
T/F The chips in RFID tags usually can function as a processor.
false
T/F With a personal cloud, your files are stored on a server on the Internet that stores only just your files and is maintained by a cloud storage provider.
false
The greater the disk cache, the slower the hard disk.
false
The images stored on microfilm and microfiche are so large that they can be read without a microfilm or microfiche reader.
false
Describe the 4 types of backup used by business and home users. Explain how enterprises use continuous data protection.
full backup: best protection against data loss because it copies all programs and data files. incremental backups: copies only files that have chanced since last full or last incremental backup differential backups: copies only files that have changed since last full backup selective backup: allows user to choose specific files to back up, regardless of whether or not the files have changed since last incremental backup
Which storage term used to measure capacity is approximately a billion bytes?
gigabyte
The inflexible, circular platters on which kind of disks use magnetic particles to store data, instructions, and information?
hard
List characteristics of a hard disk.
hard disk: storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information. -a platter is made and has thin coating of allow material that allows items to be recorded magnetically on its surface -longitudinal recording aligns magnetic particles horizontally around disk. -perpendicular recording; hard disks align magnetic particles perpendicular to the disc's surface.
Which of the following storage devices typically stores the operating system?
hard disks/SSDs
storage server/storage appliance
has its own IP address, usually does not have a keyboard or display, and contains at least one hard disk
With __________________, you can connect and disconnect a drive while the system is running.
hot swapping
Define: redundancy (as it relates to enterprise computing)
if one component fails or malfunctions, another can assume its tasks.
platter
is made of aluminum, glass, or ceramic and has thin coating of alloy material that allows items to be recorded magnetically on its surface
To reduce the amount of electrical ___________ on a SCSI cable, each end of the SCSI chain has a terminating resistor.
noise
storage device
is the hardware that records and/or retrieves items to and from storage media
read/write head
is the mechanism that reads items and writes items in the drive as it barely touches the disk's recording surface
storage medium/secondary storage
is the physical material on which a computer keeps data, information, programs, and applications
cleaner designed for optical discs
isopropyl alcohol
What does a twist in a 34-pin data cable mean?
it indicates drive A:
Which of the following best describes RAID 5?
it requires 3 or more drives and uses parity checking
What is the purpose of the LightScribe technology?
labels can be burned on the top of a disc
Which process writes sector markings to a hard drive?
low-level formatting
Which of the following is true about selecting a hard drive?
magnetic drives have larger capacity for the money than solid state drives
tape
magnetically coated ribbon of plastic that is capable of storing large amounts of data and information at a low cost (one of the first storage media used with enterprise computers)
Users subscribe to a cloud storage service, like the kind advertised in the accompanying figure, to do all of the following EXCEPT to ___
make enterprises provide data center functions
redundancy
means that if one component fails or malfunctions, another can assume its tasks
direct access/random access
means that the device can locate a particular data item or file immediately, without having to move consecutively through items stores in front of the desired item or file (used by hard drives, flash memory storage, and optical discs)
Define: read/write head
mechanism that reads items and writes items in the drive as it barely touches the disk's recording surface.
Describe memory cards and their uses. List types of memory cards.
memory card: removable flash memory storage device that you insert in and remove form a slot in a computer, mobile device, or card reader/writer. CF (CompactFlash), SDHC (Secure Digital High Capacity), SDXC (Secure Digital Expanded Capacity), miniSD, microSD, microSDHC
Explain how microfilm and microfiche are used and the advantages of using these technologies.
microfilm: 100-215-foot roll of film microfiche: small sheet of film, usually about 4x6 inches -greatly reduce amount of paper that firms must handle -inexpensive -long life
A megabyte is approximately 1 ______ bytes.
million
The simplest RAID storage design writes data on two drives at the same time and is called ______.
mirroring
Describe how RAID uses mirroring and striping. Explain how RAID levels optimize computing.
mirroring: writes data on 2 disks at the same time to duplicate the data striping: splits data, instructions, and information across multiple disks in the array
Which of the following memory configurations definitely will not work when populating a motherboard with DIMMs?
mixing unbuffered with registered
Blu-Ray
more expensive and higher capacity that regular DVDs
What is the general name of the processor feature that AMD calls HyperTransport?
multithreading
Which of the following is NOT a common type of memory card?
mx6
Memory (chips) accesses items in which of the following units of time?
nanoseconds
What unit of measurement is used for DIMM read and write times?
nanoseconds
capacity
the number of bytes a storage medium can hold
Some RAID levels use ______, which splits data, instructions, and information across multiple drives in the array.
stripping
Which RAID level technique splits data, instructions, and information across multiple disks in the array?
stripping
Which of the following does NOT use direct access?
tape
Explain how enterprise computers use tape for storage.
tape: magnetically coats ribbon of plastic that is capable of storing large amounts of data and information at a low cost.
Which of the following is NOT a necessary precaution when installing memory modules?
test the motherboard for residual electrical charges
What happens when a problem occurs while Windows 7 is installing a device?
the Action Center is launched
computer output microfilm recorder
the device that records the images on the film
storage technique of DVDs
the first technique involves making the disc denser by packing the pits closer together, and the second involves using two layers of pits
What does a controller control?
the interface between the hard disk and the system bus
microfilm and microfiche have...
the longest life of any storage media
density
the number of bits in an area on a storage medium. The higher the density, more storage capacity
memory is...
volatile
tape library
where individual tape cartridges are mounted in a separate cabinet
Which of the following is not a characteristic of a hard disk
write-protect notch
Which of the following is not a characteristic of a hard disk?
write-protect notch
mirroring
writes data on two disks at the same time to duplicate the data
Differentiate between writing and reading data to storage media.
writing: process of transferring data, instructions, and information from memory to a storage medium reading: process of transferring these items from a storage medium into memory
