Double-density

A type of diskette format. A 3½-inch, double-density diskette has a capacity of 720KB.

Drive

See Disk drive.

Driver

A program that controls a specific piece of equipment in the system. Examples of drivers include expanded memory managers, display drivers, printer drivers, and mouse drivers.

Embedded numeric keypad

See Numeric keypad.

EMS or Expanded memory

Memory that can be used by applications and programs conforming to version 4.0 of the Lotus/Intel/Microsoft (LIM) Expanded memory Specification (EMS). Expanded memory does not have addresses like conventional or extended memory.

Extended memory

Memory with addresses above lMB. Extended memory is generally not available to MS-DOS applications but can be used by some RAM disk programs, such as VDISK, and some hard disk caching programs, such as SMARTDRV. Extended memory can also be used with OS/2 and some versions of Windows.

External device

See Peripheral device.

Glossary 5