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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
**Display Devices** **CRT monitor** (describe)
* combines **three basic colors (Red, Green, Blue)** * by using these **three colors**, it can produce **millions of different colors**
26
**Display Devices** **Two basic color display producing techniques** (enumerate)
* Beam-Penetration Method * Shadow-Mask Method
27
**Display Devices** **First basic color display producing technique: Beam-Penetration Method** It is used with a ? monitor for displaying pictures (fill in the blanks)
random scan
28
**Display Devices** **First basic color display producing technique: Beam-Penetration Method** **Two phosphorus layers** (enumerate)
Red Green
29
**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)
phosphorus surface
30
**Display Devices** **First basic color display producing technique: Beam-Penetration Method** (describe)
* used with **random scan** monitor
31
**Display Devices** **Second basic color display producing technique: Shadow-Mask Method** It is used with a ? monitor for displaying pictures. (fill in the blanks)
raster scan
32
**Display Devices** **Second basic color display producing technique: Shadow-Mask Method** (describe)
* used with **raster scan** monitor * more range of color than beam penetration method * used in television sets and monitors
33
**Display Devices** **Second basic color display producing technique: Shadow-Mask Method** It has **three phosphorus color dots** at each position of the pixel. (enumerate)
* First Dot: Red color * Second Dot: Green color * Third Dot: Blue color
34
**Display Devices** depends upon the **light modulating properties** of **liquid crystals**. (identify)
Liquid crystal display (LCD)
35
**Display Devices** is used in **watches** and **portable computers**. (identify)
Liquid crystal display (LCD)
36
**Display Devices** **requires an AC power supply** instead of DC, so it is difficult to use it in circuits. (identify)
Liquid crystal display (LCD)
37
**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)
Liquid Crystals
38
**Display Devices** is a device which **emits** when **current passes through** it. It is a **semiconductor device**. (identify)
Light Emitting Diode (LED)
39
**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)
LED
40
**Display Devices** LED consumes more power compared to LCD (true or false)
true
41
**Display Devices** **Light Emitting Diode (LED)** LED is used on ?, ?, ?, ?, etc. (examples only)
* TV * smartphones * motor vehicles * traffic light
42
**Display Devices** **Light Emitting Diode (LED)** (describe)
* **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
**Display Devices** used to **store the picture information** as a **charge distribution** behind the **phosphor-coated screen**. (identify)
Direct View Storage Tube (DVST)
44
**Display Devices** It is a type of **flat panel display** which uses **tiny plasma cells** (identify)
Plasma Display
45
**Display Devices** **Plasma Display** It is also known as the ? (fill in the blanks)
Gas Discharge display
46
**Display Devices** **Plasma Display: Components** (enumerate)
* Anode * Cathode * Gas Plates * Fluorescent cells
47
**Display Devices** **Plasma Display: Components** It is used to deliver a **positive voltage**. (identify)
Anode
48
**Display Devices** **Plasma Display: Components** It also has the **line wires**. (identify)
Anode
49
**Display Devices** **Plasma Display: Components** It is used to provide **negative voltage** to gas cells. (identify)
Cathode
50
**Display Devices** **Plasma Display: Components** It also has **fine wires**. (identify)
Cathode
51
**Display Devices** **Plasma Display: Components** These plates work as **capacitors**. (identify)
Gas Plates
52
**Display Devices** **Plasma Display: Components** When we **pass the voltage**, the **cell lights regularly**. (identify)
Gas Plates
53
**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)
Fluorescent cells
54
**Display Devices** is capable of bringing **depth perception** to the viewer. (identify)
3D Display
55
**Display Devices** **3D Display** It is also called ?. (fill in the blanks)
stereoscope display technology
56
**Display Devices** **3D Display** It is used for ? and ?. (enumerate)
* 3D gaming * 3D TVs
57
**Display Devices** **3D Display** (examples only)
* Fog Display * Holographic Display * Retina Display
58
**Display Devices** **3D Display** It is used to **control the operations** of the **display device**. (identify)
Display Controller
59
**Display Devices** **3D Display: Display Controller** It is also called the ? (fill in the blanks)
Video controller
60
**Display Devices** **3D Display** It is used to **create an image**. (identify)
Display File Memory
61
**Display Devices** **3D Display** It is also used for **visual object recognition**. (fill in the blanks)
Display File Memory

COSC101 - Computer Graphics And Visual Computing (5 decks)

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