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COSC101 - Computer Graphics And Visual Computing > Lecture 3.B: Computer Graphics Hardware and Display Devices > Flashcards

Lecture 3.B: Computer Graphics Hardware and Display Devices Flashcards

1
Q

is an output device used to represent the information in the form of images (visual form)

(identify)

A

display device

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2
Q

are mostly called a video monitor or Video display unit (VDU).

(identify)

A

Display systems

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3
Q

are designed to model, display, view, or display information.

(identify)

A

Display devices

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4
Q

The purpose of display technology is to ?.

(fill in the blanks)

A

simplify information sharing

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5
Q

Display Devices

(enumerate)

A
  • Cathode-ray Tube (CRT)
  • Color CRT Monitor
  • Liquid crystal display (LCD)
  • Light Emitting Diode (LED)
  • Direct View Storage Tube (DVST)
  • Plasma Display
  • 3D Display
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6
Q

Display Devices

is a particular type of vacuum tube that displays images when an electron beam collides on the radiant surface.

(identify)

A

Cathode-ray Tube (CRT)

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7
Q

Display Devices

Cathode-ray Tube
Components of CRT

(enumerate)

A
  • Electron Gun
  • Focusing & Accelerating Anodes
  • Horizontal & Vertical Deflection Plates
  • Phosphorus-coated Screen
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8
Q

Display Devices

Cathode-ray Tube: Components
is made up of several elements, mainly a heating filament (heater) and a cathode.

(identify)

A

Electron Gun

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9
Q

Display Devices

Cathode-ray Tube: Components
is a source of electrons focused on a narrow beam facing the CRT.

(identify)

A

Electron Gun

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10
Q

Display Devices

Cathode-ray Tube: Components
These anodes are used to produce a narrow and sharply focused beam of electrons.

(identify)

A

Focusing & Accelerating Anodes

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11
Q

Display Devices

Cathode-ray Tube: Components
These plates are used to guide the path of the electron the beam.

(identify)

A

Horizontal & Vertical Deflection Plates

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12
Q

Display Devices

Cathode-ray Tube: Components
The plates produce an electromagnetic field that bends the electron beam through the area as it travels.

(identify)

A

Horizontal & Vertical Deflection Plates

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13
Q

Display Devices

Cathode-ray Tube: Components
is used to produce bright spots when the high-velocity electron beam hits it.

(identify)

A

Phosphorus-coated Screen

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14
Q

Display Devices

Two ways to represent an object on the screen

(enumerate)

A
  • Raster Scan
  • Random Scan (Vector Scan)
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15
Q

Display Devices

First way to represent object on the screen: Raster Scan

(describe)

A
  • a scanning technique
  • its electron beam moves along the screen from top to bottom, one line at a time
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16
Q

Display Devices

First way to represent object on the screen: Raster Scan
A raster scan is based on pixel intensity control display as a rectangular box on the screen called a ?.

(fill in the blanks)

A

raster

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17
Q

Display Devices

First way to represent object on the screen: Raster Scan
Picture description is stored in the memory area called as ?, or ?

(fill in the blanks)
(not same answer)

A

Refresh buffer. Frame Buffer

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18
Q

Display Devices

First way to represent object on the screen: Raster Scan
Frame buffer is also known as ? or ?.

(fill in the blanks)
(not same answer)

A

Raster. Bitmap

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19
Q

Display Devices

First way to represent object on the screen: Raster Scan
Raster scan provides the refresh rate of ? frames per second.

(fill in the blanks)

A

60 to 80

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20
Q

Display Devices

In this, the electron beam points only to the area in which the picture is to be drawn.

(identify)

A

Random Scan (Vector Scan)

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21
Q

Display Devices

Second way to represent object on the screen: Random Scan (Vector Scan)
also known as ? or ?

(fill in the blanks)
(not same answer)

A

stroke-writing display. calligraphic display

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22
Q

Display Devices

Second way to represent object on the screen: Random Scan (Vector Scan)
The image is constructed from a sequence of ?.

(fill in the blanks)

A

straight-line segments

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23
Q

Display Devices

Second way to represent object on the screen: Random Scan (Vector Scan)
On the screen, each ? is drawn by the beam to pass from one point on the screen to the other, where its x & y coordinates define each point.

(fill in the blanks)

A

line segment

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24
Q

Display Devices

It is similar to a CRT monitor

(identify)

A

Color CRT Monitor

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25
Q

Display Devices

CRT monitor

(describe)

A
  • combines three basic colors (Red, Green, Blue)
  • by using these three colors, it can produce millions of different colors
26
Q

Display Devices

Two basic color display producing techniques

(enumerate)

A
  • Beam-Penetration Method
  • Shadow-Mask Method
27
Q

Display Devices

First basic color display producing technique: Beam-Penetration Method
It is used with a ? monitor for displaying pictures

(fill in the blanks)

A

random scan

28
Q

Display Devices

First basic color display producing technique: Beam-Penetration Method

Two phosphorus layers

(enumerate)

A

Red
Green

29
Q

Display Devices

First basic color display producing technique: Beam-Penetration Method

The color shown depends on how far the electron beam penetrates the ?.

(fill in the blanks)

A

phosphorus surface

30
Q

Display Devices

First basic color display producing technique: Beam-Penetration Method

(describe)

A
  • used with random scan monitor
31
Q

Display Devices

Second basic color display producing technique: Shadow-Mask Method

It is used with a ? monitor for displaying pictures.

(fill in the blanks)

A

raster scan

32
Q

Display Devices

Second basic color display producing technique: Shadow-Mask Method

(describe)

A
  • used with raster scan monitor
  • more range of color than beam penetration method
  • used in television sets and monitors
33
Q

Display Devices

Second basic color display producing technique: Shadow-Mask Method
It has three phosphorus color dots at each position of the pixel.

(enumerate)

A
  • First Dot: Red color
  • Second Dot: Green color
  • Third Dot: Blue color
34
Q

Display Devices

depends upon the light modulating properties of liquid crystals.

(identify)

A

Liquid crystal display (LCD)

35
Q

Display Devices

is used in watches and portable computers.

(identify)

A

Liquid crystal display (LCD)

36
Q

Display Devices

requires an AC power supply instead of DC, so it is difficult to use it in circuits.

(identify)

A

Liquid crystal display (LCD)

37
Q

Display Devices

Liquid Crystal Display (LCD
are a mixture of solid and liquid. When the current flows inside it, its position changes into the desired color.

(identify)

A

Liquid Crystals

38
Q

Display Devices

is a device which emits when current passes through it. It is a semiconductor device.

(identify)

A

Light Emitting Diode (LED)

39
Q

Display Devices

The size of the ? is small, so we can easily make any display unit by arranging a large number of ?s.

(fill in the blanks)
(same answer)

A

LED

40
Q

Display Devices

LED consumes more power compared to LCD

(true or false)

A

true

41
Q

Display Devices

Light Emitting Diode (LED)
LED is used on ?, ?, ?, ?, etc.

(examples only)

A
  • TV
  • smartphones
  • motor vehicles
  • traffic light
42
Q

Display Devices

Light Emitting Diode (LED)

(describe)

A
  • emits when current passes through
  • a semiconductor device
  • is small
  • is powerful in structure, so it can withstand mechanical pressure
  • works at high temperatures
43
Q

Display Devices

used to store the picture information as a charge distribution behind the phosphor-coated screen.

(identify)

A

Direct View Storage Tube (DVST)

44
Q

Display Devices

It is a type of flat panel display which uses tiny plasma cells

(identify)

A

Plasma Display

45
Q

Display Devices

Plasma Display
It is also known as the ?

(fill in the blanks)

A

Gas Discharge display

46
Q

Display Devices

Plasma Display: Components

(enumerate)

A
  • Anode
  • Cathode
  • Gas Plates
  • Fluorescent cells
47
Q

Display Devices

Plasma Display: Components
It is used to deliver a positive voltage.

(identify)

A

Anode

48
Q

Display Devices

Plasma Display: Components
It also has the line wires.

(identify)

A

Anode

49
Q

Display Devices

Plasma Display: Components
It is used to provide negative voltage to gas cells.

(identify)

A

Cathode

50
Q

Display Devices

Plasma Display: Components
It also has fine wires.

(identify)

A

Cathode

51
Q

Display Devices

Plasma Display: Components
These plates work as capacitors.

(identify)

A

Gas Plates

52
Q

Display Devices

Plasma Display: Components
When we pass the voltage, the cell lights regularly.

(identify)

A

Gas Plates

53
Q

Display Devices

Plasma Display: Components
It contains small pockets of gas liquids when the voltage is passed to this neon gas. It emits light.

(identify)

A

Fluorescent cells

54
Q

Display Devices

is capable of bringing depth perception to the viewer.

(identify)

A

3D Display

55
Q

Display Devices

3D Display
It is also called ?.

(fill in the blanks)

A

stereoscope display technology

56
Q

Display Devices

3D Display
It is used for ? and ?.

(enumerate)

A
  • 3D gaming
  • 3D TVs
57
Q

Display Devices

3D Display

(examples only)

A
  • Fog Display
  • Holographic Display
  • Retina Display
58
Q

Display Devices

3D Display
It is used to control the operations of the display device.

(identify)

A

Display Controller

59
Q

Display Devices

3D Display: Display Controller
It is also called the ?

(fill in the blanks)

A

Video controller

60
Q

Display Devices

3D Display
It is used to create an image.

(identify)

A

Display File Memory

61
Q

Display Devices

3D Display
It is also used for visual object recognition.

(fill in the blanks)

A

Display File Memory

COSC101 - Computer Graphics And Visual Computing (5 decks)

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