Dell PowerEdge 4400 - Manual (Page 20)

I/O
Abbreviation for input/output. The keyboard and a printer, for example, are I/O devices. 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 I/O 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 updating 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 into the microprocessor. The Pentium microprocessor, for example, 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.
IP
Acronym for Internet Protocol.
IPX
Abbreviation for Internetwork Packet eXchange.
IRQ
Abbreviation for interrupt request. A signal that data is about to be sent to or received by a peripheral travels by an IRQ line to the microprocessor.
Each peripheral connection 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.
IRTOS
Abbreviation for I
2
O real-time operating system.
ISA
Acronym for Industry-Standard Architecture. A 16-bit expansion bus design. The expansion-card connectors in an ISA computer are also
compatible with 8-bit ISA expansion cards.
ITE
Abbreviation for information technology equipment.
J
JEIDA
Acronym for Japanese Electronic Industry Development Association.
K
K
Abbreviation for kilo-, indicating 1000.
KB
Abbreviation for kilobyte(s), 1024 bytes.
KB/sec
Abbreviation for kilobyte(s) per second.
Kbit(s)
Abbreviation for kilobit(s), 1024 bits.