chapter 3

The quality of an LCD monitor or LCD screen depends on several factors. Which of the following is not true about the factors that affect LCD display quality?

A lower resolution makes screen items appear smaller.

The access time (speed) of memory has no affect on the overall performance of a computer. (True/False)

False, it is the amount of time it takes the processor to read from memory and is measured in nanoseconds.

Parallel processing requires a computer to perform one complete task before beginning the next task. (True/False)

False, uses multiple processors at the same time to execute a single program or task.

What is an electronic non-volatile computer storage medium that can be electrically erased and reprogrammed? Introduced by who and what year?

Flash Memory; Toshiba in 1984.

To display the highest quality images, an LCD monitor should plug in to which type of port?

HDMI

Which of the following is the most advanced form of digital television?

HDTV

In computers, what is used to cool central processing units or graphics processors?

Heat Sink

Using ink-jet printer technology, but on a much larger scale, which of the following creates photo-realistic-quality color prints?

large-format printer

Which of the following are NOT commonly used nonimpact printers?

line printers and dot-matrix printers

Many mobile computers and mobile devices use LCD monitors. What does LCD stand for?

liquid crystal display

The process of accessing information from secondary storage devices is referred to as _______.

reading

What monitor feature is expressed as a matrix of dots or pixels?

resolution

____ is the number of horizontal and vertical pixels in a display device.

resolution

An important measure of LCD monitors is the time in milliseconds (ms) that it takes to turn a pixel on or off. What is this called?

response time

Which of the following is NOT a use of RFID?

routing bank checks

A fingerprint ____ captures curves and indentations of a fingerprint.

scanner

On a hard disk each track is divided into invisible wedge-shaped sections called _______.

sectors

in a network operating system, this computer coordinates all communication between computers.

server

The most widely used audio-output devices.

speakers and headphones

The primary principle at work in a laser printer is __________ the same energy that makes clothes in the dryer stick together or a lightning bolt travel from a thundercloud to the ground.

static electricity

A penlike device commonly used with tablet PCs and PDAs.

styllus

What is the measure of a display's width relative to its height?

the aspect ratio

Over time, which of the following is true of thermal printers?

they are inexpensive, but the print quality is low and the images tend to fade

How does a DLP projector work?

tiny mirrors reflect light to produce images

A printer, such as that shown in the accompanying figure, creates images using a laser beam and powdered ink. What is this ink called?

toner

The kind of mouse on the right in the accompanying figure is motion-sensing. What kind of mouse is this?

touch

Which of the following is a touch-sensitive display device that users interact with by touching the screen with a finger or a stylus?

touch screen

Which of the following is a small, flat, rectangular pointing device that is sensitive to pressure and motion?

touchpad

Which of the following identifies pointing devices that can be used instead of a mouse?

trackball, touchpad, pointing stick

Which of the following is not true about output types?

traditional podcasts all make use of video output

A shortcut is an icon on the desktop or in a folder that provides a user with immediate access to a program or file.

true

Although current internal hard disks are built to withstand shocks and are sealed tightly to keep out contaminants, head crashes still occur.

true

As a user moves a mouse, the pointer on the screen also moves.

true

Because LCD projectors tend to produce lower-quality images, users often prefer DLP projectors for their sharper, brighter images.

true

DVD-R and DVD+R are competing DVD-recordable formats.

true

Depending on the device, manufacturers claim memory cards can last from 10 to 100 years.

true

Digital or interactive whiteboards display a computer's desktop and can be controlled using a special pen or a finger.

true

Exposure to a magnet or magnetic field can erase the contents of a card's magnetic stripe.

true

Hearing-impaired users can instruct programs to display words instead of sounds.

true

In addition to being a stand-alone operating system, UNIX also is a server operating system.

true

In addition to games, joysticks, wheels, and gamepads that include force feedback are used in practical applications such as in the military and aviation.

true

In many cases, a magstripe reader is part of a POS terminal.

true

In some software applications, the computer can speak the contents of a document through voice output.

true

Ink-jet printers produce text and graphics in both black-and-white and color on a variety of paper types.

true

Inside a CRT, an electron beam moves back and forth across the back of the screen causing the dots on the front of the screen to glow, which produces an image on the screen.

true

Label printers typically use thermal technology.

true

Many photo printers have a built-in card slot so the printer can print digital photographs directly from a memory card.

true

Most ink-jet printers have at least two print cartridges: one containing black ink and the other(s) containing colors

true

Most optical disc drives can read a Picture CD.

true

Multifunction printers require less space than having separate devices.

true

OCR devices read printed characters in a special font.

true

OCR devices read printed characters in an OCR font.

true

On notebook and some handheld computers, smart phones, and other mobile devices, the keyboard is built in the top of the system unit.

true

One sign of a virus infection is that available memory is less than what should be available.

true

Output devices are any hardware used to provide or to create output.

true

Portable media players that do not have touch screens typically have a touch-sensitive pad

true

Portable media players that do not have touch screens typically have a touch-sensitive pad.

true

Regardless of the size of the computer, most operating systems provide similar functions.

true

Several video standards have been developed to define the resolution, number of colors, and other display properties.

true

Some data projectors are large devices that attach to a ceiling or wall in an auditorium.

true

Some data projectors are small portable devices.

true

Some mobile printers have a built-in wireless port through which they communicate with a computer wirelessly.

true

Some operating systems include a Web browser and an e-mail program, enabling users to begin accessing the Web and communicating with others as soon as they set up the Internet connection.

true

Some users prefer a wireless mouse because it eliminates the clutter of a cord.

true

The DVI port enables digital signals to transmit directly to the monitor.

true

The mouse is the most widely used pointing device today.

true

The operating system allows the user to interact with the application programs and computer hardware through a user interface.

true

The operating system is often referred to as the software platform.

true

The printhead mechanism in an ink-jet printer contains ink-filled cartridges.

true

Thermal printers use heat elements to produce images on heat-sensitive paper and are used at ATMs and gasoline pumps.

true

To capture a handwritten signature, a user writes his or her name on a signature capture pad with a stylus or pen that is attached to the device.

true

To capture a handwritten signature, a user writes his or her name on a signature capture pad with a stylus that is attached to the device.

true

Users today typically run multiple programs concurrently.

true

Voice over IP enables users to speak to other users over the Internet.

true

When drawing on a graphics tablet with a stylus or digital pen, the tablet detects and converts the movements into digital signals that are sent to a computer.

true

When programmers move application software from one UNIX version to another, they sometimes have to rewrite some of the programs.

true

When users press a key or move the mouse, a screen saver disappears and the screen returns to the previous state

true

When users press a key or move the mouse, a screen saver disappears and the screen returns to the previous state.

true

When application software poses a question to a computer user and the user answers, what term is used to identify that answer?

user response

Which of the following items are required in order for your company to conduct a videoconference?

videoconferencing software or web app, microphone, video camera

What term refers to the process of entering input by speaking into a microphone?

voice input

Your instructor has asked you to perform some research regarding a computer's capability of distinguishing spoken words. What is the best search term to use for your research?

voice recognition

This type of boot occurs when the computer is already on and you restart it without turning off the power.

warm boot

What kind of mouse is a battery-powered mouse that sometimes uses Bluetooth technology to pair with the device?

wireless

What kind of port can connect up to 127 different peripherals together with a single connector called?

USB

To display the highest quality images, an LCD monitor should plug in which of the following?

any of the above

Which industry almost exclusively uses MICR?

banking

Which of the following is an identification code that consists of a set of vertical lines and spaces of different widths?

bar code

A(n) ____ is an identification code that consists of a set of vertical lines and spaces of different widths.

bar codes

A wireless keyboard is a battery-powered device that transmits data to the system unit using wireless technology. Which of the following wireless technologies commonly are used for this purpose?

bluetooth

Which of the following kinds of printers offers an alternative for blind users?

braille

A CD-RW disc _______.

can be erased and rewritten

The _______ of a secondary storage device indicates how much data the storage medium can hold.

capacity

This allows you to upload and store documents on the Internet.

cloud storage

Instead of reading or scanning data from a source document, which of the following kinds of devices obtain data directly at the location where the transaction or event takes place?

data collection

This type of program allows communication between a peripheral device, such as a mouse or printer, and the rest of the computer system.

device driver

This process improves system performance by acting as a temporary high-speed holding area between a secondary storage device and the CPU.

disk caching

The windows troubleshooting utility that identifies and eliminates nonessential files is called _______.

disk clean up

What is pixel pitch sometimes called?

dot pitch

Which of the following is NOT an example of a common nonimpact printer?

dot-matrix printer

How is printer resolution measured?

dots per inch

Which of the following are audio output devices that rest inside the ear canal?

earbuds

You are working in a computer laboratory and want to listen to your portable media player. You use the device provided with the media player to listen without distracting other students. What type of device do you use?

earbuds

____ are audio output devices that rest inside the ear canal.

earbuds

The category of operating system used for handheld devices.

embedded

Which of the following kinds of keyboard has a design that reduces the chance of wrist and hand injuries?

ergonomic

The study of human factors related to things people use.

ergonomics

When your sister goes to work, what scientific discipline is used in the design of her workplace to incorporate comfort, efficiency, and safety for her?

ergonomics

A command is a series of related instructions that tells a computer what tasks to perform and how to perform them.

false

A large monitor allows users to view less information on the screen at once, but usually is less expensive.

false

A laser printer produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon

false

A laser printer produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon.

false

A stylus is slightly larger than a digital pen.

false

Although older computers used tape cartridges, today's computers use reel-to-reel tape drives.

false

Because audio CDs and CD-ROMs use different laser technologies, a CD-ROM drive cannot be used to listen to an audio CD while working on the computer.

false

Brightness of an LCD monitor or LCD screen is measured in pixels.

false

Computers process information (output) into data (input).

false

Current personal computer hard disks typically have storage capacities of less than 20 GB.

false

Ergonomics is the technology of authenticating a person's identity by verifying a personal characteristic.

false

Few operating systems include any utility programs.

false

Information on a display device, sometimes called hard copy, exists electronically and appears for a temporary period.

false

Nonimpact printers are ideal for printing multipart forms because they can print through layers of paper.

false

Operating systems rarely provide a means to establish Internet connections.

false

With voice input, blind users have the computer speak out loud the information that appears on the screen.

false

Pixel pitch describes the difference in light intensity between the brightest white and the darkest black that can be displayed on an LCD monitor.

false

Programs such as word processors and spreadsheets are known as utilities.

false

RFID requires line-of-site transmission

false

Starting or restarting a computer is called tasking the system.

false

The aspect ratio for widescreen monitors is 2:1.

false

The boot process is very different for large and small computers.

false

The higher the nits of an LCD monitor or LCD screen, the dimmer the images.

false

The images stored on microfilm and microfiche are so large that they can be read without a microfilm or microfiche reader.

false

The lower the dpi (dots per inch) an ink-jet printer can output, the better the print quality.

false

The lower the time in milliseconds it takes to turn a pixel on or off on an LCD monitor, the slower the response time.

false

The most widely used input devices are monitors, printers, and keyboards.

false

The speed of a CD-ROM drive has no effect on how fast it installs programs or accesses the disc.

false

The wireless technology used for a wireless mouse is very different from that of a wireless keyboard.

false

Touchpads are found most often on desktop computers.

false

Trackballs are found on all laptops and convertible tablets.

false

Visually impaired users cannot change Windows settings, such as increasing the size or changing the color of text to make words easier to read.

false

Voice input is part of a larger category of input called video input.

false

When a bank receives a check for payment, it uses an OCR inscriber to print the amount of the check in OCR characters in the lower-right corner.

false

Windows users work with a mouse that has only one button.

false

With Bluetooth printing, a printer communicates with a computer or other device using infrared light waves.

false

With an ink-jet printer, a higher dpi means the drops of ink are larger.

false

You can erase a DVD-ROM.

false

You can read, write, and erase a DVD-R.

false

Which of the following is true about an internal hard disk?

fixed amount of storage

Which of the following kinds of scanners works in a manner similar to a copy machine except it creates a file of the document in memory instead of a paper copy?

flatbed

Which type of optical scanner works in a manner similar to a copy machine?

flatbed scanner

Today's joysticks, wheels, gamepads, and motion-sensing game controllers include a technology that sends resistance to the device in response to actions of the user. What is this technology called?

force feedback

When a file is broken up into small parts that are stored wherever space is available, the hard disk is said to become _______.

fragmented

If your instructor advises you to use the keys at the top of your keyboard that are identified by the letter F and then a number to perform certain activities, what kind of keys is she advising you to use?

function keys

What is the term for a motion you make on a touch screen with the tip of one or more fingers or your hand?

gesture

Solid-state storage devices are different than hard disks in that they _______.

have no moving parts

The hard disk's disk surface is scratched and some or all of the data is destroyed when there is a _______.

head crash

Which of the following are audio output devices that cover or are placed outside the ear?

headphones

Which of the following is a disadvantage of an all-in-one printer?

if the device breaks down, users lose all four functions

A(n) ____ printer forms characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper.

impact

Your roommate is a graphic artist. She buys a large-format printer that creates photo-realistic-quality color prints. What printer technology does her printer use?

ink-jet printer

A(n) ____ device is any hardware component that allows users to enter data or instructions (programs, commands, and user responses) into a computer.

input

_______ is any data or instructions that are used by a computer.

input

Which of the following is a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen?

interactive whiteboard

Which of the following kinds of printer is a small printer that prints on an adhesive-type material that can be placed on a variety of items such as envelopes, packages, optical discs, photos, and file folders?

label

What type of device reads the strip of magnetic material on the back of your credit card?

magnetic stripe card reader

Which of the following reads the magnetic stripe on the back of credit cards, entertainment cards, bank cards, and other similar cards?

magstripe reader

This type of embedded operating system is used by smartphones.

mobile

Which of the following are tasks a pointing device can accomplish?

move a pointer on the screen, click buttons, select graphics

Some touch screens recognize when you touch the screen with two fingers or two hands. If you are looking for a device on which you can do this, what type of touch screen should you search for?

multi-touch

Which kind of software allows users to record, compose, mix, and edit music and sounds?

music production

If your friend is working with digital music and wants to record, compose, mix, and edit her music, what kind of software should she obtain for her computer?

music production software

Displays are geared for a specific resolution. What is this resolution called?

native

A(n) ____ printer forms characters and graphics on a piece of paper without actually striking the paper.

nonimpact

Which kind of printer forms characters and graphics on a piece of paper without actually striking the paper?

nonimpact

Which of the following characteristics about RAID is incorrect?

one high-capacity hard disk drive

This system software is responsible for managing your computer's resources including memory, processing, and storage.

operating system

This type of mouse emits and senses light to detect mouse movement.

optical

Which of these is not a mass storage device?

optical disc

Which of the following identify mouse types used with desktop computers?

optical mouse, touch mouse

The actual photographed resolution of a digital camera like the one shown in the accompanying figure is known as the ____.

optical resolution

Which of the following is data that has been processed into a useful form?

output

____ is data that has been processed into a useful form.

output

Hard disks store and organize files using all the following, except _______.

paths

Which of the following printer is a color printer that produces photo-lab-quality pictures?

photo

The series of dots that form the image on a monitor are called _______.

pixels

A(n) ____ monitor is a display that uses gas plasma technology, which sandwiches a layer of gas between two glass plates.

plasma

Which kind of monitor sandwiches a layer of gas between two glass plates?

plasma

What are sophisticated printers that are used in specialized fields such as engineering and drafting called?

plotters

In a grocery store, a(n) ____ is a combination of an electronic cash register, bar code reader, and printer.

point of sale (POS) terminal

In a graphical user interface, which of the following is a small symbol on the screen whose location and shape changes as a user moves a pointing device?

pointer

Which of the following is a pressure-sensitive input device that allows a user to control a pointer on the screen?

pointing stick

What is the print option where the page is taller than it is wide?

portrait

client operating systems can operate with or without a network.

true

Which of the following is a type of DV camera that enables a home or small business user to capture video and still images, send email messages with video attachments, add live images to instant messages, broadcast live images over the Internet, and make video calls?

webcam

A(n) ____ mouse is a battery-powered mouse that transmits data using wireless technology, such as radio waves or infrared light waves.

wireless

Provides a pathway to connect parts of the CPU to each other: A) wireless B) bus C) wired D) plug and play

B) Bus

These memory chips hold the program (sequence of instruction) and data that the CPU is presently processing. A) card B) RAM C) rom D) flash

B) RAM

This container houses most of the electrical components for a computer system. A) unicode B) system board C) system unit D) carrier package

C) System Unit

______ is the process of making a three-dimensional solid object of virtually any shape from a digital model.

3D Printing

What allows the various devices both inside and attached to the system unit to communicate with each other?

A Bus

What numbering system uses only the numbers 0 and 1? A) binary system B) ASCII system C) 8-bit system D) octo system

A) Binary System

Which of the following requires any company with 15 or more employees to make reasonable attempts to accommodate the needs of physically challenged workers?

ADA

What signals are continuous and vary in strength and quality? (ex. about, like turning an old radio to pick a station)

Analog Signals

01010110 would be known as a bit or a byte?

Byte, 8 0's or 1's.

An opening inside the system unit in which you can install additional equipment is called?

Bay

0 and 1 would be known as a byte or a bit?

Bit

What is a battery powered memory chip in your computer that stores startup information called?

CMOS

What joins a cable to a port?

Connector

Which of the following describes the difference in light intensity between the brightest white and the darkest black that can be displayed on an LCD monitor?

Contrast ratio

Which of the following is not a type of scanning device?

Styllus

Two types of cache are memory cache and disk cache. (True/False) and what is cache?

True, cache is temporary storage.

Retail and grocery stores use which kind of bar code?

UPC (universal product code)

Which of the following is a device that uses a light source to read characters, marks, and codes and then converts them into digital data that a computer can process?

Optical reader

Which of the following is not true about output?

Output types include text, graphics, audio, and display.

What do most current computers support?

Pipelining

What is a hardware component in a system without the need for physical device configuration or user intervention in resolving resource conflicts called?

Plug and Play

What is the point at which a peripheral attaches to or communicated with a system unit called? sometimes referred to as a jack.

Port

Which of the following statements is incorrect?

Printer speed is measured by how many words are printer per minute

Which of the following is not an example of secondary storage?

RAM

Which of the following is a technology, as shown in the accompanying figure, that uses radio signals to communicate with a tag placed in or attached to an object, an animal, or a person?

RFID

What is memory access time? A) amount of time it takes the processor to read data, instructions, and info from memory. B) amount of time required to fetch and execute a single instruction. C) amount of time in which a single byte of data can be stored in cache memory. D) amount of time necessary to switch a bit from the value 0 to the value 1.

A) Amount of time it takes the processor to read data, instructions, and info from memory.

The Binary System consists of only two digits, 0 and 1. Each 0 and 1 is called a: A) bit B) number C) character D) byte

A) Bit

In a personal computer system, the central processing unit is typically contained on a single: A) chip B) RAM C) module D) bus

A) Chip

The mainboard, or motherboard, is also know as the: A) system board B) mobile system C) board processor D) computer

A) System Board

The number of times the CPU can fetch and process data or instructions in one second is known as its: A) cycle rate B) frequency rate C) clock speed D) bus What is it measured in?

C) Clock Speed, measured in gigahertz (GHz)

If your computer overheats and shuts down, what malfunction should you suspect? A) all components in the system unit created too much heat. B) ventilation ports have become plugged and have otherwise failed. C) tried to perform too many operations at one time and overheated. D) cooling fans are not working properly

D) Cooling fans are not working properly.

What signals are in one of two states, on or off? (ex. very specific, a modern radio tuner)

Digital Signals

Who created the mouse that is used on millions of computers today?

Douglas Engelbart

What typically holds disk drives?

Drive Bay

What is a socket on the motherboard that can hold an adapter card called?

Expansion Slot

Many retailers see the technology shown in the accompanying figure as an alternative to bar codes because which of the following is true?

It does not require line-of-sight transmission.

What distinguishes a data collection device from other input devices?

It obtains data directly at the location where the transaction or event takes place

What is a primary feature of a digital video camera?

It records video as digital signals

Which monitor is the most energy efficient.

LED

This reading device is used in banks to read the numbers on the bottom of checks and deposit slips.

MICR

Which of the following devices read text printed with magnetized ink?

MICR

What speeds the process of the computer because it stores frequently used instructions and data?

Memory Cache

Which of the following is not true about mobile printers?

Mobile printers usually connect to a FireWire port.

What type of memory from a system unit does not lose its contents when the power on the system is shut off? Give an example.

Nonvolatile Memory Ex. ROM, Flash Memory, CMOS.

Many scanners include a certain kind of software, which can read and convert text documents into electronic files. What is that kind of software?

OCR

Most of these types of device include a small optical scanner for reading characters and sophisticated software to analyze what is read. What kind of device is this?

OCR

LCD monitors and LCD screens sometimes use a new type of technology to produce color, which produces a brighter display that is also easier to read. What is this new technology called?

OLED

If students in your class are taking a standardized test using a form with rectangles that they fill in with a pencil, what technology will be used to grade the test?

OMR

Which of the following is a technology that reads hand-drawn marks such as small circles or rectangles?

OMR

Which of the following types of character recognition systems is used for standardized multiple-choice testing?

OMR

When a user types data on a keyboard, what is occurring?

The user is using an input device to enter input into the memory of the computer.

What type of memory from a system unit loses its contents when the power on the system is shut off? Give an example.

Volatile Memory Ex. RAM (ram scrams when power shuts off)

Plasma monitors offer large screen sizes and rich colors. Which of the following statements describe how plasma monitors work?

Voltage is applied to a layer of gas between two glass plates, which releases a UV light that causes the pixels on the screen to glow.

What is the number of bits the processor can interpret and execute at a given time?

Word Size

What method is used to read a bar code?

a bar code reader uses laser beams to read bar codes

What is a single device that provides functionality of a printer, scanner, copy machine, and perhaps a fax machine called?

a multifunction printer

What type of printer forms characters and graphics on a piece of paper without actually contacting the paper, such as an inkjet printer?

a nonimpact printer

What is the definition of software?

a series of related instructions that tells a computer or mobile device the tasks to perform and how to perform them

Which of the following measures the amount of time required by the storage device to retrieve data and programs?

access speed

Which of the following technologies uses a separate transistor to apply charges to each liquid crystal cell?

active-matrix