Input and Output Devices Flashcards

1
Q

Main input device of computers

A

Keyboard

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2
Q

Kinds of keys in keyboards

A

Typing keys, Numeric keys, Function keys, Control keys

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3
Q

A pointing device that helps users to select items on screen by controlling the movement of the pointer.

A

Mouse

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4
Q

A pointing device to control the position of the cursor of the screen

A

Trackball

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5
Q

A small, flat, rectangular stationary pointing device with a sensitive surface of 1.5” - 2”

A

Touchpad

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6
Q

Handheld devices

A

Joystick, stylus, touchscreen

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7
Q

A cursor/control device widely used in computer games and CAD/CAM applications

A

Joystick

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8
Q

A pen-shaped device to enter information or write on the touch screen of a handheld device

A

Stylus

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9
Q

A display screen that can identify the occurrence and position of a touch inside the display region.

A

Touch screen

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10
Q

Uses light as a source of input for detecting or recognizing different objects such as characters, marks, codes, and images

A

Optical Input Devices

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11
Q

Works by directing a beam of light across the barcode and measuring the amount of light reflected back

A

Barcode reader

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12
Q

Captures images, printed text, photographs, etc. and converts them into digital images for editing and display on computers.

A

Image scanner

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13
Q

The process of converting printed materials into text or word processing files that can be easily edited and stored.

A

Optical Character Recognition (OCR)

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14
Q

The process of electronically extracting data from marked fields, such as checkboxes and fill-in fields, on printed forms

A

Optical Mark Recognition (OMR)

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15
Q

Used to verify the legitimacy of paper documents, especially bank checks

A

Magnetic Ink Character Reader (MICR)

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16
Q

Used to either capture or create sound

A

Audio Input Devices

17
Q

Used to capture video from the outside world into the computer

A

Video Input Devices

18
Q

Electromechanical devices that accept digital data from the computer and convert them into human-understandable form

A

Output devices

19
Q

Specialized vacuum tubes in which images are produced when an electron beam strikes a phosphorescent surface

A

CRT Monitor

20
Q

A device that takes an image from a digital source and projects it onto a screen or another surface

A

Projectors

21
Q

Two categories of Projectors

A

LCD Projectors & DLP Projectors

22
Q

Produce a physical form of output. For example, the content of a file printed on paper

A

Hard Copy Output Devices

23
Q

Print characters by striking an inked ribbon against the paper

A

Impact printers

24
Q

Print characters as a pattern of dots

A

Dot Matrix Printers

25
The wheel is rotated in such a way that the character to be printed is positioned just in front of the printer ribbon
Daisy Wheel Printers
26
High speed printers in which one typed line is printed at a time
Line printers
27
Much quieter as their printing heads do not strike the paper
Non-impact printers
28
Works at very high speeds and produces high quality text and graphics
Laser printers
29
Kinds of Input Devices
Keyboard, handheld device, optical device, pointing device, audio-visual device
30
Pointing devices
Mouse, trackball, trackpad
31
Handheld devices
Pen (stylus), touchscreen, joystick
32
Optical Devices
Barcode readers, scanners, OCR, OMR, MICR