Dell Precision 400 User Manual page 149

ICES
Abbreviation for Interface-Causing Equipment Standard
(in Canada).
ICU
Abbreviation for ISA Configuration Utility.
I/O
Abbreviation for input/output. The keyboard is an input
device, and a printer is an output device. In general, I/O
activity can be differentiated from computational activity.
For example, when a program sends a document to the
printer, it is engaging in output activity; when the program
sorts a list of terms, it is engaging in computational activity.
ID
Abbreviation for identification.
interlacing
A technique for increasing video resolution by only up-
dating alternate horizontal lines on the screen. Because
interlacing can result in noticeable screen flicker, most
users prefer noninterlaced video adapter resolutions.
internal microprocessor cache
An instruction and data cache built in to the microprocessor.
The Intel Pentium microprocessor includes a 16-KB internal
cache, which is set up as an 8-KB read-only instruction
cache and an 8-KB read/write data cache.
IPX
Acronym for internetwork packet exchange.
IRQ
Abbreviation for interrupt request. A signal that data is
about to be sent to or received by a peripheral device travels
by an IRQ line to the microprocessor. Each peripheral con-
nection must be assigned an IRQ number. For example,
the first serial port in your computer (COM1) is assigned
to IRQ4 by default. Two devices can share the same IRQ
assignment, but you cannot operate both devices
simultaneously.
ISA
Acronym for Industry-Standard Architecture. A 16-bit ex-
pansion bus design. The expansion-card connectors in an
ISA computer are also compatible with 8-bit ISA expan-
sion cards.
ITE
Abbreviation for information technology equipment.
jumper
Jumpers are small blocks on a circuit board with two or
more pins emerging from them. Plastic plugs containing a
wire fit down over the pins. The wire connects the pins and
creates a circuit. Jumpers provide a simple and reversible
method of changing the circuitry in a printed circuit board.
K
Abbreviation for kilo-, indicating 1,000.
KB
Abbreviation for kilobyte(s), 1,024 bytes.
KB/sec
Abbreviation for kilobyte(s) per second.
Kbit(s)
Abbreviation for kilobit(s), 1,024 bits.
Kbit(s)/sec
Abbreviation for kilobit(s) per second.
key combination
A command requiring you to press multiple keys at the
same time. For example, you can reboot your computer by
pressing the <Ctrl><Alt><Del> key combination.
kg
Abbreviation for kilogram(s), 1,000 grams.
kHz
Abbreviation for kilohertz, 1,000 hertz.
LAN
Acronym for local area network. A LAN system is usually
confined to the same building or a few nearby buildings,
with all equipment linked by wiring dedicated specifically
to the LAN.
lb
Abbreviation for pound(s).
LED
Abbreviation for light-emitting diode. An electronic de-
vice that lights up when a current is passed through it.
Glossary 7