Supporting Display Devices

Question 1

Aspect Ratio

Answer 1

A characteristic of display devices that indicates the ratio of width to height.

Question 2

CCFL (Cold Cathode Fluorescent Lamp)

Answer 2

A light source that uses electrodes and mercury vapour to create ultraviolet light.

Question 3

Chain of Custody

Answer 3

The record of history from collection, to presentation in court, to disposal.

Question 4

Composite Video

Answer 4

The format of an analogue (picture only) signal before it is combined with a sound signal and modulated onto a radio frequency carrier.

Question 5

Dead Pixels

Answer 5

Pixels that do not display light as expected and will show up as small black dots.

Question 6

Display Device

Answer 6

A personal computer component that enables users to view the text and graphical data output from a computer.

Question 7

DisplayPort

Answer 7

A digital display standard that aims to replace DVI and VGA standards.

Question 8

Hertz

Answer 8

A unit of measurement that indicates cycles or occurrences per second.

Question 9

LCD (Liquid Crystal Display)

Answer 9

A type of flat-panel display that uses Cold Cathode Fluorescent Lamps as the source of backlight and that comes in large-screen sizes of 17 inches and more, with high screen resolution and high colour depth.

Question 10

Lumen

Answer 10

The unit of measurement for visible light that is emitted from a light source.

Question 11

Mini-HDMI (Mini High-Definition Multimedia Interface)

Answer 11

A smaller version of the full size HDMI connector, except that it is specified for use with portable devices.

Question 12

Native Resolution

Answer 12

The fixed resolution for LCD or other flat panel display devices.

Question 13

Pixel

Answer 13

The smallest discrete element on a display. A single pixel is composed of a red, a blue and a green dot.

Question 14

Plasma Display

Answer 14

A type of flat panel that uses a gas mixture placed between two sheets of glass that have electrodes attached to their surfaces.

Question 15

RCA (Radio Corporation of America)

Answer 15

A cable and connector that is used to carry audio and video transmissions to and from a variety of devices such as TVs, digital cameras and gaming systems.

Question 16

Refresh Rate (Frame Rate)

Answer 16

The number of times per second that the monitor is “refreshed”, or scanned to illuminate the pixels.

Question 17

Resolution

Answer 17

The number of pixels that make up the dimension of a display, represented in a ratio value as the number of horizontal pixels by vertical pixels.

Question 18

S-Video

Answer 18

An analogue video signal that carries the video data as two separate signals (brightness and colour). S-Video works in 480i or 576i resolution.

Question 19

Stuck Pixels

Answer 19

Pixels that only show one colour of light, so they appear out of place when the display is on.

Question 20

TN (Twisted Nematic)

Answer 20

An LCD panel technology where the panel is black when no electric current is running through the liquid crystal cells because the cells align themselves in a twisted state. When an electric current is applied, the liquid crystals untwist, allowing light to pass through, resulting in a white display screen.

Question 21

Visual Artifact

Answer 21

An error or anomaly in the visual display of a picture.