Digital Equipment DECpc AXP 150 User Information page 109

hard disk
See disk.
head
The part of a fixed disk drive, diskette drive, or tape drive that
reads, records, and erases data. Also called read/write head.
IEEE
Institute of Electrical and Electronics Engineers.
ISA
Industry Standard Architecture. A 16-bit bus standard
introduced with the IBM® PC/AT system. It is backwards
compatible with the 8-bit IBM PC/XT bus. The ISA standard
fostered the development of many different types of option cards
that were compatible with a wide range of PC systems.
LAN
Local area network. A high-speed communications network
that covers a limited geographical area, such as a section of a
building, an entire building, or a cluster of buildings. It is a
privately owned communications network whose speed is greater
than 1M bits/second.
LED
Light-emitting diode. A semiconductor device that glows when
supplied with voltage. LEDs are used as indicators on the
system unit and on certain devices installed in the system unit.
local area network (LAN)
See LAN.
magnetic tape
A tape that is made of plastic and coated with magnetic oxide. It
is used for storing data. Also called magtape.
memory
The area of the system that electrically stores instructions and
data, often temporarily.
Glossary–7