Tech Terms 6

Active - Matrix:
A technology used in LCD displays, such as laptop screens, and flat screen monitors.

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Boolean:
Logic that computers use to determine f a statement is true or false. Four main operators: AND, NOT, Or, and XOR.

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Cluster:
1. A group of sectors on a disk: Used for organization and identification, hard drive.
2. A group of connected computers: several computers linked together performing similar functions.

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Database:
A data structure that stores organized information. Typically made of many linked tables of rows and columns.

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Fiber -Optic Cable:
A cable made up of super-thin filaments of glass or other transparent materials that can carry beams of light. Because a fiber-optic cable is light-based, data can be sent through it at the speed of light.

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Cat 5:
A twisted pair of cabled used for carrying signals. Network cable standard: 4 twisted pairs with RJ45.

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HDMI (High-Definition Multimedia Interface.):
A digital interface for transmitting audio and video data in a single cable.

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Integrated Services Digital Network (ISDN):
Data transfer technology. Transfers significantly faster than a dial - up modem.

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Jumper:
A small metal connector that acts as an on/off switch and is used to alter hardware configurations.

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CLoud:
Comes from early network diagrams, in which the image of a cloud was used to indicate a large network, such as a WAN. The cloud eventually became associated with the entire Internet, and the two terms are now used as the same thing.

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