Fujitsu NH570 User Guide

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118 - Glossary
IR 
An abbreviation for infrared.
IrDA 
Infrared Data Association. An organization which produces standards for communication using 
infrared as the carrier.
IRQ 
Interrupt Request. An acronym for the hardware signal to the CPU that an external event has occurred 
which needs to be processed.
KB  
Kilobyte. One thousand bytes.
LAN 
Local Area Network. An interconnection of computers and peripherals within a single limited 
geographic location which can pass programs and data amongst themselves.
LCD 
Liquid Crystal Display. A type of display which makes images by controlling the orientation of 
crystals in a crystalline liquid.
Lithium ion Battery 
A type of rechargeable battery which has a high power-time life for its size and is not subject to the 
memory effect as Nickel Cadmium batteries.
LPT Port 
Line Printer Port. A way of referring to parallel interface ports because historically line printers were 
the first and latter the most common device connected to parallel ports.