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Designator – Epson EISA Desktop User Manual

Page 162

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DMA channel

Direct Memory Access channel. The pathway through which

data is transferred between main storage and I/O devices. This

transfer method requires no processor intervention.

DOS

Disk Operating System. A commonly used operating system

that controls the computer’s input and output functions. See

also

Operating system.

Double-density

A type of diskette format that allows you to store twice as

much data as the standard-density format. A 5¼-inch

double-density diskette can store 360KB of data. A 3½-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 resolutions up to 640 x 350.

EISA

Extended Industry Standard Architecture. A bus standard for

IBM compatible computers that extends the ISA bus

architecture to 32 bits and allows more than one computer to

share the bus easily.

6

Glossary