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A+ Definitions - Lesson 4
2012 A+ Study Aid
23
Computer Science
Professional
06/24/2012

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Term
CRT Monitor
Definition
Traditional Display using analog color.
Term
LCD Monitor
Definition
Compact, lightweight replacement for traditional displays. Use Cold Cathode Fluorescent Lamp (CCFL) as the backlight source.
Term
LED Monitors
Definition
Consume the less energy and use light emitting diodes as the backlight source.
Term
Resolution
Definition
The maximum number of pixels on a monitor
Term
Refresh Rate
Definition
The number of times per second that the monitor is scanned.
Term
Color Depth
Definition
The number of bits used to store the color of a pixel
Term
Font
Definition
The size and style of typeface
Term
Brightness
Definition
Amount of white in a display image
Term
Contrast
Definition
The difference in intensity between adjacent colors in an image
Term
Image Position
Definition
The location or size of the display in relation to the physical monitor
Term
Distortion
Definition
Curves, Waves, or moire patters in the video image
Term
Degaussing
Definition
Option in CRT monitors to demagnetize the monitor.
Term
Standby
Definition
Puts some devices in a low power stated and turns off others
Term
Hibernate
Definition
Saves the contents of RAM to a file and turns off the computer.
Term
KVM
Definition
Keyboard/Video/Mouse switch, allowing a computer user to manage multiple computers with a single keyboard and mouse
Term
Active Matrix
Definition
Uses one resistor per pixel. Requires more power and provides a better image.
Term
TFT - Thin Film Resistor
Definition
Alternate term for Active Matrix
Term
Passive Matrix
Definition
Uses two groups of transistors with a wire matrix. Screen updates are slower
Term
PCI - peripheral component interconnect
Definition
Was the most common system in PCs. Up to ten devices, supports PnP
Term
AGP - Accelerated Graphics Port
Definition
A system bus developed specifically to support high-performance video requirements. 266MBps -> 2.1GBps
Term
PCIe - PCI Express
Definition
A PCI implementation that uses a faster serial connection protocol. Versions 1-3, with 2 being most commonly used today. 250MBps, 500MBps, and 1GBps, respectively.
Term
CN - Communication/Network Riser
Definition
supports, audio modem, and local network functionality. Being phased out in favor of on-board components
Term
PC Card / PCMCIA
Definition
The credit card sized computer card is a form factor or the laptop periphral
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