User`s manual

Glossary

GL-6

hardware A computing system is normally spoken of as having two

major components: hardware and software. Hardware is

the term used to describe any of the physical embodiments

of a computer system, with emphasis on the electronic

circuits (the computer) and electromechanical devices

(peripherals) that make up the system.

HCT Hardware Conformance Test. A test used to ensure that

both hardware and software conform to the Windows NT

interface.

I/O Input/Output

IBC PCI/ISA Bridge Controller

IDC Insulation Displacement Connector

IDE Integrated Drive Electronics. A disk drive interface

standard. Also known as ATA (Advanced Technology

Attachment).

IEEE Institute of Electrical and Electronics Engineers

interlaced A graphics system in which the even scanlines are refreshed

in one vertical cycle (field), and the odd scanlines are

refreshed in another vertical cycle. The advantage is that the

video bandwidth is roughly half that required for a non-

interlaced system of the same resolution. This results in less

costly hardware. It also may make it possible to display a

resolution that would otherwise be impossible on given

hardware. The disadvantage of an interlaced system is

flicker, especially when displaying objects that are only a

few scanlines high.

IQ Signals Similar to the color difference signals (R-Y), (B-Y) but using

different vector axis for encoding or decoding. Used by

some USA TV and IC manufacturers for color decoding.

ISA (bus) Industry Standard Architecture (bus). The de facto

standard system bus for IBM-compatible computers until

the introduction of VESA and PCI. Used in the reference

platform specification. (IBM)

ISASIO ISA Super Input/Output device