User Manual (Vista)

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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.