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Firewall
A security system used to protect an internal network or
intranetfromexternalnetworks
throughanauthenticationprocedure.
Hibernation Mode
A power mode that saves all data in memory to the
harddiskandturnstheCPUandharddiskoff.When
cancelingHibernationMode,allapplicationprograms
thatwererunningarerestoredtotheirlaststate.
Icon
Thisreferstoasmallimagethatrepresentsalethat
userscanuse.
LAN(Local AreaNetwork)
A communicationsnetworkconnectingcomputers,
printers and other devices within a local area such as
withinabuilding. A LANenablesallconnecteddevices
tointeractwithotherdevicesonthenetwork.The
currentLANusestheEthernetmediaaccesscontrol
methoddevelopedintheearly1980s.T oconnecttoan
Ethernet,anetworkcardcalledaLANcard,Ethernet
cardornetworkinterfacecardisrequired.T oexchange
databetweencomputers,aprotocolisrequiredbesides
thehardwareequipment.WindowsXPuses TCP/IPas
thedefaultprotocol.
LCD(LiquidCrystalDisplay)
TherearePassiveMatrixand ActiveMatrixLCDtypes.
Thiscomputerusesthe ActiveMatrixtypeLCDcalleda
TFTLCD.SinceanLCDisimplementedbytransistors
insteadofacathode-raytubeunlikeaCRT ,itssizecan
beslim. Andbecauseitdoesnotblink,itreduceseye
strain.
Network
A groupofcomputersanddevices,suchasprinters
andscanners,connectedbyacommunicationslink.
A networkcanbeeithersmallorlargeandcanbe
connectedpermanentlythroughcablesortemporarily
throughtelephonelinesorwirelesslinks.Thebiggest
networkistheInternet,aworldwidenetwork.
Notication Area
ThisreferstotherightareaoftheT askbarincluding
programiconssuchasthevolumecontrol,thepower
optionsandthetime.
Power Schemes
Thisreferstoapre-determinedpowermanagement
optiongroup.Forexample,youcansetthetimethe
computerwaitsbeforeenteringStandbyMode,or
beforethemonitororharddriveturnsoff. Thesettings
aresavedasapowerscheme.
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