Copy of `Micro2000 - Computer Hardware and Micro-Scope Glossary`

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Micro2000 - Computer Hardware and Micro-Scope Glossary Category: Technical and IT > Computers Date & country: 23/11/2007, UK Words: 218

transistor
An electronic device used to control the flow of electricity.

UART
Universal Asynchronous Receiver/Transmitter, the control chip or circuitry for a serial port.

Universal Post-Probe
A POST reader card from Micro 2000 containing many advanced features, including the ability to read either ISA or PCI with the same card.

upper memory area
The 384KB of RAM between 640KB and 1MB, reserved in DOS for BIOS, video and adapter card ROMs.

USB
Universal Serial Bus, a port that allows the hot-plugging of multiple external plug-and-play devices.

utility
A software program or routine that aids in system management.

UXGA
A high-end video standard. It stands for Ultra Extended Graphics Array, and has a resolution of 1600 x 1200.

VGA
A video standard for unlimited color reproduction.

video
Having to do with the visual presentation of information, usually on a monitor screen.

video card
An adapter card used to manage the display on the monitor.

video controller
The circuitry driving the monitor display. This circuitry may be on the motherboard or on a video adapter card.

volume
A physical unit of data storage, such as a diskette, tape reel or one partition of a hard drive.

volume boot record
The first sector of a partition, containing the disk parameters of that volume.

warm boot
Restarting the boot-up without first turning off the power.

Windows
A widespread operating system from Microsoft, used on approximately 80% of all PCs.

write head
A small electromagnet in a disk drive that puts data onto the platter.

XGA
Extended Graphics Array, a video standard with a resolution of 1024 x 768 at 256 colors, or 640 x 480 with 16-bit color.

Zip Drive
A high-density removable-media drive. Each diskette holds either 100 or 250 megabytes.