Chapter 04: Input and Output

Question 1

3D printers

Answer 1

An output device designed to print threedimensional objects, such as product prototypes. (164)

Question 2

barcode

Answer 2

A machine-readable code that represents data as a set of bars. (140)

Question 3

Barcode printers

Answer 3

An output device that prints barcoded documents. (163)

Question 4

barcode readers

Answer 4

An input device that reads barcodes. (141)

Question 5

Biometric readers

Answer 5

A device used to input biometric data, such as an individual’s fingerprint or voice. (146)

Question 6

Computer speakers

Answer 6

Output devices connected to computers that provide audio output. (165)

Question 7

data projector

Answer 7

A display device that projects all computer output to a wall or projection screen. (158)

Question 8

Digital cameras

Answer 8

An input device that takes pictures and records them as digital images. (146)

Question 9

display device

Answer 9

An output device that contains a viewing screen. (150)

Question 10

display screen

Answer 10

A display device built into a notebook computer, netbook, or other device. (150)

Question 11

Flatbed scanners

Answer 11

An input device that scans flat objects one at a time. (139)

Question 12

flat-panel displays

Answer 12

A slim type of display device that uses electronically charged chemicals or gases instead of an electron gun to display images. (152)

Question 13

graphics tablet

Answer 13

A flat, rectangular input device that is used in conjunction with a stylus to transfer drawings, sketches, and anything written on the device to a computer. (135)

Question 14

handwriting recognition

Answer 14

The ability of a device to identify handwritten characters. (133)

Question 15

Headphones

Answer 15

A personal audio output device used by an individual so only he or she can hear the sound; headphones with a built-in microphone are typically referred to as headsets. (165)

Question 16

Headsets

Answer 16

Headphones with a built-in microphone. (165)

Question 17

Ink-jet printers

Answer 17

An output device that sprays droplets of ink to produce images on paper. (162)

Question 18

keyboard

Answer 18

An input device containing numerous keys that can be used to input letters, numbers, and other symbols. (129)

Question 19

Laser printers

Answer 19

An output device that uses toner powder and technology similar to that of a photocopier to produce images on paper. (161)

Question 20

liquid crystal display (LCD)

Answer 20

A type of flat-panel display that uses charged liquid crystals to display images. (155)

Question 21

magnetic ink character recognition (MICR)

Answer 21

Magnetic technology used primarily in the banking industry for check processing. (144)

Question 22

monitor

Answer 22

A display device for a desktop computer. (150)

Question 23

mouse

Answer 23

A common pointing device that the user slides along a flat surface to move a pointer around the screen and clicks its buttons to make selections. (131)

Question 24

multifunction devices (MFDs)

Answer 24

A device that offers multiple functions (such as printing, scanning, and faxing) in a single unit. (161)

Question 25

Optical character recognition (OCR)

Answer 25

The ability of a computer to recognize scanned text characters and convert them to electronic form as text, not images. (144)

Question 26

Organic light emitting diode (OLED) displays

Answer 26

A type of flat-panel display that uses emissive organic material to display brighter and sharper images than LCDs. (155)

Question 27

Photo printers

Answer 27

An output device designed for printing digital photographs. (163)

Question 28

pixels

Answer 28

The smallest colorable area in an electronic image, such as a scanned image, a digital photograph, or an image displayed on a display screen. (151)

Question 29

Plasma displays

Answer 29

A type of flat-panel display that uses layers of gas to display images; most often used on large displays. (158)

Question 30

pointing device

Answer 30

An input device that moves an on-screen pointer, such as an arrow, to allow the user to select objects on the screen. (131)

Question 31

Portable printers

Answer 31

A small, lightweight printer designed to be used while on the go. (164)

Question 32

Portable scanners

Answer 32

A scanner designed to capture input while on the go. (140)

Question 33

printers

Answer 33

An output device that produces output on paper (159)

Question 34

Radio frequency identification (RFID)

Answer 34

A technology used to store and transmit data located in RFID tags. (142)

Question 35

RFID readers

Answer 35

A device used to read RFID tags. (142)

Question 36

RFID tags

Answer 36

A device containing a tiny chip and a radio antenna that is attached to an object so it can be identified using RFID technology. (142)

Question 37

scanner

Answer 37

An input device that reads printed text and graphics and transfers them to a computer in digital form. (139)

Question 38

Speech recognition systems

Answer 38

A system, consisting of appropriate hardware and software, used to recognize voice input, such as dictation or audio computer commands. (149)

Question 39

stylus

Answer 39

An input device that is used to write electronically on the display screen. (132)

Question 40

touch pad

Answer 40

A small rectangular-shaped input device, often found on notebook and netbook computers, that is touched with the finger or thumb to control an on-screen pointer and make selections. (137)

Question 41

Touch screens

Answer 41

A display device that is touched with the finger to issue commands or otherwise provide input to the connected device. (135)

Question 42

Trackball

Answer 42

Pointing device similar to an upside-down mechanical mouse; ball mechanism on top rotated by thumb or finger. (137)