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Glossary 7IDAbbreviation for identification.interlacingA technique for increasing video resolution by only up-dating alternate horizontal lines on the screen. Becauseinterlacing can result in noticeable screen flicker, most us-ers prefer noninterlaced video adapter resolutions.internal microprocessor cacheAn instruction and data cache built in to the microprocessor.The Intel486, IntelDX2, and IntelDX4 microprocessors in-clude an 8-KB internal cache. The Pentium microprocessorincludes a 16-KB internal cache, which is set up as an 8-KBread-only instruction cache and an 8-KB read/write datacache.IPXAcronym for internetwork packet exchange.IRQAbbreviation for interrupt request. A signal that data isabout to be sent to or received by a peripheral travels byan 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 assignedto IRQ4 by default. Two devices can share the same IRQassignment, but you cannot operate both devicessimultaneously.ISAAcronym for Industry-Standard Architecture. A 16-bit ex-pansion bus design. The expansion-card connectors in anISA computer are also compatible with 8-bit ISA expan-sion cards.ITEAbbreviation for information technology equipment.JEIDAAcronym for Japanese Electronic Industry DevelopmentAssociation.KAbbreviation for kilo-, indicating 1,000.KBAbbreviation for kilobyte(s), 1,024 bytes.KB/secAbbreviation for kilobyte(s) per second.Kbit(s)Abbreviation for kilobit(s), 1,024 bits.Kbit(s)/secAbbreviation for kilobit(s) per second.key combinationA command requiring that you press multiple keys at thesame time. For example, you can reboot your computer bypressing the key combination.kgAbbreviation for kilogram(s), 1,000 grams.kHzAbbreviation for kilohertz, 1,000 hertz.LANAcronym for local area network. A LAN system is usuallyconfined to the same building or a few nearby buildings,with all equipment linked by wiring dedicated specificallyto the LAN.lbAbbreviation for pound(s).LCDAbbreviation for liquid crystal display. A low-power dis-play often used for notebook computers. An LCD consistsof a liquid crystal solution between two sheets of polarizingmaterial. An electric current causes each crystal to act likea shutter that can open to allow light past or close to blockthe light.LEDAbbreviation for light-emitting diode. An electronic de-vice that lights up when a current is passed through it.LIFAcronym for low insertion force. Some computers use LIFsockets and connectors to allow devices such as the micro-processor chip to be installed or removed with minimalstress to the device.LIMAcronym for Lotus/Intel/Microsoft. LIM usually refers toversion 4.0 of the EMS. |
