Diskette

A flat piece of flexible plastic coated with magnetic material used to store data permanently. Available in either 3 $-inch or 5 l/,-inch format.

Display adapter card

A circuit board that can be installed in one of the computer’s option slots to provide the monitor interface. The display adapter card controls the way the monitor displays text and graphics. (In the Equity 386SX/20 PLUS, a VGA display adapter is built into the system board. Also known as Video card.

DOS

Disk Operating System. A commonly used operating system that controls the computer’s input and output functions. See Operating system

Double-density

A type of diskette format that allows you to store twice as much data as the standard-density format. A 5 l/d-inch double-density diskette can store 360KB of data. A 3 l/z-inch double-density diskette can store 720KB of data.

Drive designator

The letter name of a disk drive, followed by a colon-for example, C:

EGA

Enhanced Graphics Adapter. A type of display adapter card that allows you to display high-resolution graphics on a compatible monitor. It can display up to 43 lines of text with 80 characters on each line, or it can display monochrome or 16-color graphics at up to 640 x 350 resolution.

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