Samsung NP-X22 User Manual download pdf (Page 194)

193

Glossary

TheGlossaryliststheterminologiesusedinthisUserGuide.

Forterminologiesotherthanthese,lookinWindowsHelp.

Backup

Awaytosavethecurrentdatatorestoreitlaterif

necessary.Abackupisawaytorestorecomputerdata

whenthedataorcomputerisdamaged.

Client

This refers to a computer that uses a shared network

resourceprovidedbyaserver.

DDR SDRAM(DoubleDataRateSynchronousDynamic

RandomAccessMemory)

DRAMisamemorytypewhosecellsconsistofa

capacitorandtransistormanufacturedatalowprice.

SDRAMisamemorytypewhoseperformancehas

beenimprovedbysynchronizingtheclockwiththe

externalCPUclock.DDRSDRAMisamemorytype

whoseperformancehasbeenimprovedbydoubling

theoperatingspeedoftheSDRAMandiswidelyused

nowadays.ThiscomputerusesDDRSDRAM.

Device Manager

Anadministrativetoolusedtomanagecomputer

devices.Youcanaddorremovehardwareorupdatea

devicedriverusingtheDeviceManager.

Direct X

AnapplicationinterfacedevelopedtoenableWindows

applicationprogramstoaccesshardwaredevices

ataveryhighspeed.Sincetheoperatingspeedof

graphics,memoryandsoundcardsmustbeveryfast

toprovidehighqualityvideoandsoundforgames,

DirectXenablesfastercontrolandinteractionbetween

applicationsandhardwaredevices.ByusingDirect

X,themultimediaperformanceofWindowshasbeen

hugelyimproved.

Driver

Softwarethatinteractsbetweenthehardwareand

theoperatingsystem.Anoperatingsystemknowsthe

hardwareinformationandcontrolsthehardware.In

general,adriverissuppliedwiththecorresponding

hardwaredevice.

DVD (DigitalVersatileDisk)

DVDwasdevelopedtoreplaceCD(compactdisk).

Althoughtheshapeandsizeofthediscarethesame

asthatofaCD,thecapacityofaDVDisatleast4.7GB

whilethecapacityofaCDis600MB.DVDvideois

digitalunlikeVHS(analog)videoandsupportsMPEG2

compressionanddigitalaudio.ToplayaDVD,aDVD

driveisrequired.

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Samsung NP-X22 User Manual Page 194

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