Deck 7: Input/Output Technology

Question 1

Image quality improves as dots per inch increases.

Answer 1

True

Question 2

For people and computers, a printed character must exactly match a specific pixel map to be recognizable.

Answer 2

False

Question 3

On paper, pixel size corresponds to the smallest drop of ink that can be placed accurately on the page.

Answer 3

True

Question 4

Image quality improves as pixel size increases.

Question 5

Point size refers to characters' width.

Question 6

LCD displays have less contrast than other flat panel displays because color filters reduce the total amount of light passing through the front of the panel.

Question 7

Impact technology began with dot matrix printers.

Question 8

OLED displays combine many of the best features of LCD and plasma displays.

Question 9

For video display, a pixel displays no light or light of a specific color and intensity.

Question 10

IDLs are a simple form of compression.

Question 11

Phosphors emit colored light in liquid crystal displays.

Question 12

Bar-code readers are typically used to track large numbers of inventory items, as in grocery store inventory and checkout, package tracking, warehouse inventory control, and zip code routing for postal mail.

Question 13

Because plasma displays actively generate colored light near the display surface, they're brighter and have a wider viewing angle than LCDs.

Question 14

Color laser output uses four separate print generators.

Question 15

Decades ago, printers adopted 1/32 of an inch as a standard pixel size.

Question 16

Character and text recognition is most accurate when text is printed in a single font and style, with all text oriented in the same direction on the page.

Question 17

Modern bar codes encode data in three dimensions.

Question 18

​A monochrome display can display black, white, and many shades of gray in between, so it requires 8 bits per pixel.

Question 19

An IDL can represent image components as embedded fonts, vectors, curves and shapes, and embedded bitmaps.

Question 20

An advantage of optical over mechanical mice is a lack of moving parts that can be contaminated with dust and dirt.

Question 21

The ____ of a display is the number of pixels displayed per linear measurement unit.

A) resolution
B) refinement
C) accuracy
D) pitch

Question 22

A digital still camera captures and stores one image at a time.

Question 23

A(n) ____ is simply a table of colors.

A) palette
B) spectrum
C) RGB system
D) color scheme

Question 24

____ is a process that generates color approximations by placing small dots of different colors in an interlocking pattern.

A) Merging
B) Banding
C) Dithering
D) Retracing

Question 25

In graphics, a ____ is a line segment with a specific angle and length in relation to a point of origin.

A) course
B) vector
C) path
D) route

Question 26

Error rates of 1-2% are common using OCR software with mixed-font text and even higher with handwritten text.

Question 27

Moving image quality improves as the number of frames per second (fps) decreases.

Question 28

Phonemes sound similar when voiced repetitively by the same person.

Question 29

For sound reproduction that sounds natural to people, frequencies between 20 Hz and 20 KHz must be sampled at least 96,000 times per second.

Question 30

A significant advantage of MIDI is its compact storage format.

Question 31

Continuous speech is a series of nonstop interconnected phonemes.

Question 32

Most portable data capture devices combine a keyboard, mark or bar-code scanner, and wireless connection to a wired base station, cash register, or computer system.

Question 33

A collection of characters of similar style and appearance is called a ____.

A) type
B) scheme
C) pitch
D) font

Question 34

Components of a video controller include display generator circuitry, software stored in ROM, a video processor, and ____.

A) RAM
B) font tables
C) display pixels
D) secondary storage

Question 35

The number of distinct colors or gray shades that can be displayed is sometimes called the ____.

A) resolution
B) palette
C) range
D) chromatic depth

Question 36

In the United States, resolution is generally stated in ____.

A) lines per inch
B) pixels per line
C) dots per inch
D) dots per millimeter

Question 37

Written Western languages are based on systems of symbols called ____.

A) fonts
B) characters
C) types
D) schemes

Question 38

​Each cell in the matrix representing one part of a digital image is called a ____.

A) bubble​
B) ​pixel
C) ​Dot
D) ​Block

Question 39

Sound varies by frequency (pitch) and intensity (loudness).

Question 40

Typically, digital cameras capture 14 to 20 fps.

Question 41

The number of refresh cycles per second is normally stated in hertz and called the ____.

A) refresh rate
B) pixel depth
C) resolution
D) scan rate

Question 42

A(n) ____ detects specific patterns of bars or boxes.

A) bar-code scanner
B) image scanner
C) dimensional scanner
D) linear scanner

Question 43

____ displays use excited gas and phosphors to generate colored light.

A) Plasma
B) liquid crystal
C) light emitting diode
D) thin film transmission

Question 44

A ____ is a printer that generates line drawings on wide sheets or rolls of paper.

A) sublimation
B) thermal
C) line printer
D) plotter

Question 45

OLED displays combine features from both LED and plasma display, including: ____.

A) thin, bright, and high power
B) thin, bright, and low power
C) thin, backlit, and high power
D) thin, backlit, and low power

Question 46

____ technology etches display pixels and the transistors and traces that control/illuminate them onto a glass substrate.

A) CRT
B) Neon
C) backlight
D) TFT

Question 47

A(n) ____ operates with an electrical charge and the attraction of ink to this charge.

A) laser printer
B) inkjet printer
C) impact printer
D) thermal printer

Question 48

A(n) ____ printer moves a print head containing a matrix of pins over the paper.

A) laser
B) dot matrix
C) inkjet
D) dye sublimation

Question 49

A modern large format printer is a _____ printer that can print on wider-than normal rolls of paper.

A) laser
B) dye sublimation
C) inkjet
D) impact

Question 50

____ devices combine optical-scanning technology with a special-purpose processor or software to interpret bitmap content.

A) Optical image recognition
B) Optical character recognition
C) Optical character reproduction
D) Optical image resolution

Question 51

____ sensors capture input from special-purpose symbols placed on paper or the flat surfaces of 3D objects.

A) Dot and image
B) Mark and image
C) Mark and pattern
D) Image capture

Question 52

Bar-code readers use ____that sweep a narrow beam back and forth across the bar code.

A) scanning LEDs
B) high-intensity lamps
C) high resolution CCDs
D) scanning lasers

Question 53

Touch position sensing in a touch screen is usually based on ____.

A) resistance
B) flux
C) capacitance
D) inductance

Question 54

Pointing devices can be used to enter drawings into a computer system or control the position of a(n) ____ on a display device.

A) pointer
B) arrow
C) cursor
D) marker

Question 55

A(n) ____ display includes one or more transistors for every display pixel.

A) cathode ray tube
B) active matrix
C) liquid crystal
D) Passive matrix

Question 56

PDF417 bar codes can hold around ____ of data.

A) 1 KB
B) 1 MB
C) 1 GB
D) 1 TB

Question 57

Modern ____ displays achieve high-quality color display with organic compounds.

A) LCD
B) TFT
C) CRT
D) LED

Question 58

Video display panels are connected to a ____ that's connected to a port on the system bus or a dedicated video bus.

A) video buffer
B) video manager
C) video station
D) video controller

Question 59

A ____ contains a matrix of liquid crystals sandwiched between two polarizing filter panels that block all light except light approaching from a specific angle.

A) Plasma
B) CRT
C) liquid crystal display
D) light emitting diode

Question 60

A(n) ____ generates bitmap representations of printed images.

A) bar-code scanner
B) image scanner
C) optical scanner
D) visual scanner

Question 61

Each transfer of a full screen of data from the display generator to the monitor is called a(n) ____________________.

Question 62

Postscript is a(n) ____________________ designed mainly for printed documents, although it can also be used to generate video display outputs.

Question 63

The ____________________ colors are cyan, magenta, and yellow.

Question 64

To an observer, the quality of a printed or displayed image increases as ____________________ size increases.

Question 65

A(n) ____________________ matrix display uses one or more transistors for every pixel.

Question 66

A(n) ____ accepts a stream of bits representing sound samples and generating a continuous electrical signal that can be amplified and routed to a speaker.

A) digital-to-analog processor
B) digital-to-analog parser
C) digital-to-analog compiler
D) digital-to-analog converter

Question 67

Font size is measured in units called ____________________.

Question 68

A stored set of numbers describing the content of all pixels in an image is called a(n) ____________________.

Question 69

As ____________________ size increases image quality improves.

Question 70

____ output is only able to generate one frequency (note) at a time.

A) Stereophonic
B) Monophonic
C) Polyphonic
D) Monosyllabic

Question 71

____ is the process of recognizing and responding to the meaning embedded in spoken words, phrases, or sentences.

A) Text recognition
B) Pattern recognition
C) Speech recognition
D) Natural recognition

Question 72

Up to ____ channels of MIDI data can be sent over the same serial transmission line

A) 4
B) 8
C) 16
D) 32

Question 73

A(n) ____ accepts a continuous electrical signal representing sound (such as microphone input), samples it at regular intervals, and outputs a stream of bits representing the samples.

A) analog-to-digital converter
B) analog-to-digital inverter
C) analog-to-digital diverter
D) analog-to-digital parser

Question 74

The process of converting analog sound waves to digital representation is called ____.

A) reducing
B) interpreting
C) sampling
D) transforming

Question 75

Human speech consists of a series of sounds called ____, roughly corresponding to the sounds of each letter of the alphabet.

A) phonemes
B) homonyms
C) cheremes
D) visemes

Question 76

Direct3D and ____________________ are widely-used video controller IDLs.

Question 77

A(n) ____ is a microprocessor specialized for processing continuous streams of audio or graphical data.

A) analog signal processor
B) virtual signal processor
C) electronic signal processor
D) digital signal processor

Question 78

____________________ dithering is usually called half-toning.

Question 79

Most current speech-recognition systems are ____, which means they must be "trained" to recognize the sounds of human speakers.

A) speaker independent
B) speaker dependent
C) speaker neutral
D) speaker attuned

Question 80

____ is a standard for storing and transporting control information between computers and electronic musical instruments.

A) Musical Instrument Digital Interface
B) Musical Instrument Digital Interface
C) Musical Interface Digital Interconnection
D) Musical Interconnection Digital Interface