MIS CHP 8
gigabyte (GB)
1 billion bytes
megabyte (MB)
1 million bytes
petabyte (PB)
1 quadrillion bites
terabyte (TB)
1 trillion bytes
kilobyte (KB)
1000 bytes
magnetic stripe card
A credit card, entertainment card, bankcard, or other similar card with a strike that contains information identifying you in the card. The card issuer, such as financial organization, encode information in the stripe. The information in this tripod includes your name, account number, and the card's expiration date.
card reader/writer
A device that reads from and right on memory cards. They usually connected to the USB port on the computer. The type of car determines the type of card reader/writer needed. Some accept multiple types of cards; others accept one type.
SSD (solid-State Drive)
A flash memory storage device that contained on processor to manage it storage.
USB flash drive/thumb drive
A flash memory storage device that plugs into a USB port on a computer or mobile device. USB flash drives are convenient for mobile users because they are small and lightweight enough to be transported on a keychain or in a pocket. With a USB flash drive, users easily transfer documents, photos, music, and videos from one computer to another.
RAID (redundant array of independent disks)
A group of two or more integrated hard discs. It isan ideal storage solution in situations where uninterrupted access to the data is critical.
DVD ROM (DVD-read-only memory)
A high-capacity optical disc that users can read but not right on or he race. DVD ROM's store movies, music, music videos, huge databases, and complex software
Storage area network (SAN)
A high-speed network with the sole purpose of providing storage to other attach servers. In fact, a storage area network includes only storage devices. High-speed fiber-optic cable usually connects other networks and servers to the storage area network, so that the networks and servers have fast access to large storage capacities. A storage area network and connect to network's and other servers that are miles awayusing high-speed network connections.
Tape
A magnetically coated ribbon of plastic that is capable of storing large amounts of data and information at a low cost. Tape no longer is used as a primary method of storage. Instead, businesses use tape most often for long-term storage and backup.
blu-ray
A more expensive DVD format which has a higher capacity and better quality than standard DVDs, especially for high-definition audio and video.
track
A narrow recording band that forms a full circle on the surface of the disk
outsourcing
A practice where organizations elect to all-load all (or at least a back up) storage management to an outside organization or cloud storage provider
memory card
A removable flash memory storage device, usually no bigger than 1.5 inches in height or width, that you insert in and remove from a slot and a computer, mobile device, or card reader/writer
external hard disc
A separate freestanding storage device that can connect with a cable to a USB port or other port on a computer or mobile device.
microfiche
A small sheet of film, it usually about 4 x 6"that stores microscopic images of documents
tape cartridge
A small, rectangular, plastic housing for tape.
single-session disc
A standard CD ROM is called a single-session disk because manufactures right all items on the disc at one time.
hard disk/Hard disk drive (HDD)
A storage device that contains one or more in flexible, circular platters that use magnetic particles to store data, instructions, and information.depending on how the magnetic particles are aligned, they represent either a 0 bit or a 1 bit
LightScribe technology
A technology that some drives use that enables it to etch labels directly on especially coded disks (as opposed to placing an adhesive label on the disk)
SAS (serial-attached SCSI)
A type of SCSI that uses cereal signals to transfer data, instructions, And information. Advantages of SAS over parallel SCSI include dinner, longer cables; reduced interface any: lower cost; support for many more connected devices at once; and faster speeds. SAS interfaces support connections to hard disks, RAID, SSDs, optical disk drive, printers, scanners, digital cameras, and other devices.
CD-ROM (CD-read-only memory)
A type of optical disc that users can read but not right on(Record) or erase - hence, the name re-only.
optical disc
A type of storage medium that consist of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser. Optical disc used in computers typically are 4.75 inches in diameter and less than one-twentieth of an inch thick. three widely used touch of optical discs are CDs (compact disc), DVDs (digital versatile distance and sometimes digital video disc), and Blu-ray discs.
longitudinal recording
Aligns magnetic particles horizontally around the surface of the disk
CF
CompactFlash - type of memory card
redundancy
Enterprise hardware often includes levels of redundancy, which means that if one component fails or malfunctions, another camp assume it's tasks
tape library
Enterprise is often use a tape library, we're individual take cartridges are mounted in a separate cabinet.
Fibre Channel (FC) technology
Enterprise storage often uses FC technology as the interface that connects the device to the network because FC technology has much faster transmission rate SCSI and other previously discussed interfaces
solid-state media
Flash memory chips are a type of solid-state media, which means they consist entirely of electronic components, such as integrated circuits, and contain no moving parts. The lack of moving parts makes flash memory storage more durable and shock resistant than other types of media, such as magnetic hard disks or optical discs.
SDXC
Secure Digital expanded capacity - type of memory card
SDHC
Secure Digital high-capacity - type of memory card
Computer output microfilm recorder
The device that records the images on the microfilm film. The stored images are so small that you can read them only with the microfilm or microfiche reader.
sectors
The disc's stores locations consist of which type in shape sections, which break the tracks and a small arcs called sectors. On a hard disk, a sector typically stores up to 512 bytes of data. Sometimes, a sector has a flaw and cannot store data.when you format a disc. The operating system marks these bad sectors as unusable.
Storage device
The hardware that records and/or retrieve items to and from storage media
read/write head
The mechanism that reads items and writes items in the drive as it barely touches the disc' S recording surface. A head actuator on the hard disk attaches to arms that moves the read/writehead to the proper location on the platter.
density
The number of bits in an area on a storage medium. A higher density means more storage capacity
capacity
The number of bytes (characters) storage medium can hold.
secondary storage/storage medium
The physical material in which a computer keeps data, information, programs, and applications. Examples of storage media include internal hard disk, external hard disk, solid-state drives (SSDs), memory cars, USB flash drives, optical disc on the network attach storage devices, magnetic Stripe cards, smart cards, RFID tags, and microfilm. Cloud storage is another storage option, in which the actual online storage media used is transparent to the user.
ripping
The process of copying audio and/or video data from a purchase disc in saving it on your own media
formatting
The process of dividing the disk into tracks in sectors so that the operating system can store in locate data and information on the disc.
writing
The process of transferring data, instructions, and information from memory to a storage medium. when storage devices right on storage media, they are creating output
Reading
The process of transferring these items from storage medium into memory. When storage devices read from storage media date function as a source of input.
Burning
The process of writing on it optical disc
level 1/mirroring
The simplest RAID storage design which writes data onto disks at the same time to duplicate the data. A level one configuration enhances storage for liability because, if the disc suit fail, a duplicate of the requested item is available elsewhere within the array of disks.
transfer rate
The speed with which data, instructions, and information transfer to and from a device. Transfer rates for storage are stated in kilobytes per second (KBps), megabytes per second (MBps), and gigabytes per second (GBps)
microfilm
a 100 to 215 foot roll of film that stores microscopic images of documents
fixed disk
a hard disk that is mounted inside the computers caseis sometimes called this because it is not portable.
perpendicular recording
aligns the magnetic particles vertically or perpendicular to the disk's surface, Making much greater storage capacities possible.
selective backup/partial backup
allows the user to choose specific files to back up, regardless of whether or not the files have changed since the last incremental backup.
CD-RW (CD-rewritable)
an erasable multisession disc users can write on multiple times. CD-RW overcomes the major disadvantage of CD-R because it allows users to write and rewrite data, instructions, and information on the CD-RW disc multiple times - instead of just once. Reliability of the disc tends to drop, however, with each successive rewrite
cloud storage
and Internet service that provides storage to computer or mobile device users
Smart card
and alternative to a magnetic stripe cards, stores data on integrated circuit embedded in the card. Two types of smart cards are content and contactless. when you insert a contact smart card and a specialized card reader, the information on the smart card is read and, if necessary, updated. Contactless Smartcards communicate with a reader using a radio frequency, which means the user simply places the car near the reader.
EIDE (enhanced integrated Drive electronics)
and interface that uses parallel signals to transfer data, instructions, and information. EIDE interfaces provide connections for hard disks, RAID, SSDs,optical disc drives, and tape drives.
CD-R (CD-recordable)
and optical disc on which users can write once, but not a race, their own items, such as text, graphics, and audio.
mini disc
and optical disc that game consuls and mobile devices may use that has a diameter of 3 inches or less; mini discs are also work in standard sized optical disc drive.
WORM (write once, read many)
another name for a CD-R since it can only be written on only one time
DVD/CD-RW drives
comibination drives that read and write on DVD and CD media. Current conputers that include optical drives often use these combination drives.
disk cache/buffer
consists of a memory chip up (S) on a hard disk that stores frequently excess data, instructions, and information. Disc cache and memory cache work in a similar fashion.
RFID tag
consists of an antenna and a memory chip that contains the information to be transmitted via radio waves.
incremental backup
copies only the Fossett of change since the last full or last incremental backup
differential backup
copies only the files that have changed since the last full backup
backup software
enables you to schedule backups, select the appropriate backup type, and choose the storage media for the backup.
eSATA (external SATA)
external drives can use the eSATA interface which is much faster than USB
Sarbanes-Oxley Act
full scope on page 364 "Ehtics & Issues 8-4" Section. The law provides a myriad of financial reporting requirements and guidelines for public companies.A main focus of the lot is the retention of business records. Because of the law, companies have been confronted with massive need data storage harm it's for these records.
geotag
graphical data that can pinpoint the location on a map where a photo was taken
Storage appliance (also called a network attached storage server)
has its own IP address, usually does not have a keyboard or display, and contains at least one hard disk, often configured in a RAID. Administrators quickly can add storage to an existing network by connecting a network attached storage server to a network.
network attach storage (NAS)
hey server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network.
platter
made of aluminum, glass, or ceramic and has a thing coating of alloy material that allows items to be recorded magnetically on its surface
Direct access (also called random access)
means that the device can locate a particular data item or file immediately, without having to move consecutively through items stored in front of the desired date item or fall. When writing or reading specific data, direct access is much faster than sequential access.
access time
measures (one) the amount of time it takes a storage device to locate an item on a storage medium or (two) the time required to deliver item from memory to the processor. The excess time of storage devices is slow, compared with the axis time of memory.memory excesses items and nano seconds compared to storage devices accessing items in microseconds
microSDXC
memory card
M2
memory stick micro - type of memory card
head crash
occurs when a read/write head touches the surface of the plater, usually resulting in a loss of data or sometimes loss of the entire disk.
striping
other RAID levels use a technique called striping, which splits data, instructions, and information across multiple discs in the array. Striping improves disk access time, but does not offer data duplication. For this reason, some RAID levels combine both mirroring and striping.
controller
previously called a disk controller, it consists of a special-purpose chip in electronic circuits that control the transfer of data, instructions data, information from a drive to and from the system bus and other components in the computer. The controller may be part of a drive, maybe on the motherboard, or maybe a separate adapter card inside the computer.
jewel case
protective case for an optical disc
Full backup/archival backup
provides the best protection against data loss because it copies all program in data files. Generally, user should perform a full back up at regular intervals, such as at the end of each week and at the end of the month.
tape drive
reads from and writes on a magnetic tape.
Photo CD
refers to CDs that contain only photos
sequential access
refers to reading or writing data consecutively.
Multisession
some CD-R's are multi session, which means you can write on part of the disc at one time in another part at a later time - if the disc has free space
backup plan
specifies a regular schedule for copying and storing important data, information, apps, and programs.
revolutions per minute (rpm)
the spin speed of the disc
DVD-R and DVD+R
these are competing DVD-recordable WORM formats, on which users can write wants but not a race their own items, including video, audio, photos, graphics, and text.
DVD-RW, DVD+RW, and DVD+RAM
these are competing DVD-rewritable formats that users can write on multiple times
internal hard drive
these term is used to refer collectively to hard disks and SSDs inside a computer.
skimming
thieves also use a handheld device to swipe the card and then obtaining store account details. This action, called skimming, is prevalent at gas station,s restaurants, and lounges, where unscrupulous employees sell the information the criminals who then spend your money still your identity.
external hard drive
this term may be used her for globally to external hard disk and external SSDs
memory stick PRO duo
type of memory card
microSD
type of memory card
microSDHC
type of memory card
miniSD
type of memory card
xD Picture card
type of memory card
SATA (serial advanced technology attachment)
uses cereal signals to transfer data, instructions, and information. The primary advantage of SATA interfaces is there cables are thinner, longer, more flexible, and less susceptible to interference than cables that use parallel signals. SATA interfaces support connections to hard disk, RAID, SSDs, and optical drive disk drives.
SCSI (small computer system interface)
uses parallel signals, but can support up to eight or 15 peripheral devices. Supported devices include hard disks, RAID, SSDs, optical disk drive, tape drives, printers, scanners, network cards, and more.
