User's Manual

260 Glossary
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.
Internal USB
Internal USB flash drive is an additional storage device. Internal USB enhances
virtualization capabilities.
IP
The Internet Protocol (IP) is the method or protocol by which data is sent from
one computer to another on the Internet. Each computer (known as a host) on
the Internet has at least one IP address that uniquely identifies it from all other
computers on the Internet.
IPMI
Abbreviation for Intelligent Platform Management Interface, which is an industry
standard for management of peripherals used in enterprise computers based on
Intel architecture. The key characteristic of IPMI is that inventory, monitoring,
logging, and recovery control functions are available independent of the main
processors, BIOS, and operating system.
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 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.
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.
iSCSI
Acronym for Internet SCSI. An IP based storage networking standard for linking
data storage facilities. By carrying SCSI commands over IP networks, iSCSI is