Summary

16 Internetwork Packet Exchange/Sequenced Packet ExchangeInternetwork Packet Exchange/Sequenced PacketExchange (IPX/SPX) Used by Novell Netware.IPX is a connectionless communication. SPX is thetransport layer (Layer 4 of the OSI reference model).interrupt request (IRQ) A request from a devicefor communication with the CPU.I/O shield A grounded metal plate installed in therear of the case that enables the motherboard connectorsto be accessed from the outside of the case.isopropyl alcohol A colorless flammable chemicalcompound with a strong odor used to clean the contactson computer components.JJava A programming language for applets to runwithin a web browser. Examples of applets include acalculator and a counter.JavaScript A programming language developed tointeract with HTML source code for interactive websites.Examples include a rotating banner and apopup window.jumper An electrical contact point used to set ahard drive as master or slave.Kkeyboardkeys.An input device with multifunctionalkeyboard port A PS/2 socket used to attach anexternal keyboard.kilobytes per second (KBps) A measurement ofthe amount of data that is transferred over a connection,such as a network connection. A data transferrate of 1 KBps is a rate of approximately 1000 bytesper second.Llaptop A small form factor computer designed tobe mobile. Operates much the same as a desktopcomputer. Laptop hardware is proprietary and usuallyis more expensive than desktop hardware.laptop batterythe laptop.A rechargeable battery that powerslaptop connector A socket that is used to attachthe laptop to a docking station.laptop keyboard An input device that includesalphanumeric, punctuation, and special functionkeys.laptop latchA lever used to open the laptop lid.laser printer A type of printer that uses static electricityand a laser to form the image on the paper.latent imageimage.In laser printers, the undevelopedLCD monitor An output device that passes polarizedlight through liquid crystals to produce imageson the screen.light-emitting diode (LED) A type of semiconductorthat emits light when current is passedthrough it. The LED indicates whether componentsinside the computer are on.line-in connectoraudio source.A socket that is used to attach an