Users Guide

Glossary 169
IDE
Abbreviation for Integrated Drive Electronics. IDE is a computer system
interface, used primarily for hard drives and CDs.
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.
IHV
Abbreviation for independent hardware vendor. IHVs often develop their own
MIBs for components that they manufacture.
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.
IP address
Abbreviation for Internet Protocol address. See TCP/IP.
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.
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 system (COM1) is assigned to IRQ4 by default.
Two devices can share the same IRQ assignment, but you cannot operate both
devices simultaneously.
ISV
Abbreviation for independent software vendor.