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Firewall
Asecuritysystemusedtoprotectaninternalnetworkor
intranetfromexternalnetworks
through an authentication procedure.
Hibernation Mode
Apowermodethatsavesalldatainmemorytothe
harddiskandturnstheCPUandharddiskoff.When
cancelingHibernationMode,allapplicationprograms
thatwererunningarerestoredtotheirlaststate.
Icon
Thisreferstoasmallimagethatrepresentsalethat
users can use.
LAN(LocalAreaNetwork)
Acommunicationsnetworkconnectingcomputers,
printersandotherdeviceswithinalocalareasuchas
withinabuilding.ALANenablesallconnecteddevices
to interact with other devices on the network. The
currentLANusestheEthernetmediaaccesscontrol
methoddevelopedintheearly1980s.Toconnecttoan
Ethernet,anetworkcardcalledaLANcard,Ethernet
cardornetworkinterfacecardisrequired.Toexchange
databetweencomputers,aprotocolisrequiredbesides
thehardwareequipment.WindowsXPusesTCP/IPas
thedefaultprotocol.
LCD(LiquidCrystalDisplay)
TherearePassiveMatrixandActiveMatrixLCDtypes.
ThiscomputerusestheActiveMatrixtypeLCDcalleda
TFTLCD.SinceanLCDisimplementedbytransistors
insteadofacathode-raytubeunlikeaCRT,itssizecan
beslim.Andbecauseitdoesnotblink,itreduceseye
strain.
Network
Agroupofcomputersanddevices,suchasprinters
andscanners,connectedbyacommunicationslink.
Anetworkcanbeeithersmallorlargeandcanbe
connectedpermanentlythroughcablesortemporarily
throughtelephonelinesorwirelesslinks.Thebiggest
networkistheInternet,aworldwidenetwork.
Notication Area
ThisreferstotherightareaoftheTaskbarincluding
programiconssuchasthevolumecontrol,thepower
options and the time.
Power Schemes
Thisreferstoapre-determinedpowermanagement
optiongroup.Forexample,youcansetthetimethe
computerwaitsbeforeenteringStandbyMode,or
beforethemonitororharddriveturnsoff.Thesettings
are saved as a power scheme.