NEC Express5800/120Rd-2, Service Manual

Page: 355 / 362

Glossary 5
H
hard disk drive
See disk drive.
hardware
The physical parts of your computer, including the keyboard, monitor, disk drives, cables,
and circuit cards.
hot swap
A method used to insert or remove SCSI disk drives into or from an operating bus. This
method is typically used in RAID subsystems. When used in non-RAID subsystems the
operating system must typically be restarted.
I
IC
(Integrated Circuit) An electronic device that contains miniaturized circuitry.
IDE
(Integrated Drive Electronics) A type of hard disk drive with the control circuitry located
inside the disk drive rather than on a drive controller card.
interface.
A connection between the computer and a peripheral device that enables them to
exchange data. See also parallel port and serial port.
ISA
(Industry Standard Architecture) An industry standard for computers and circuit cards that
transfer 16 bits of data at a time.
J
jumper
A small electrical connector used for configuration on some computer hardware.
K
(Kilobyte)
1,024 bytes. See also byte.
L
LAN
(Local Area Network) A group of computers linked together within a limited area to
exchange information.