IMPORTANT KEY POINTS FOR NETWORKING AND COMMUNICATION CBSE CLASS 12TH

PAN: personal area networkGui:graphical user interfaceCui:command user interfaceARPANET: advanced research project agency network.http : hyper text  transfer protocolftp :file transfer protocoltcp : tansmission control protocolip : internet protocolsmtp : simple mail transfer protocolsnmp : simple network mangament protocolpop: post office protocolgsm :global system for mobile communicationcdma :code division multiple accesswcdma: wideband code divison multiple accesswLL:wireless in local loopbps:bit per secondkbps :kilo bit per secondmbps:mega bit per secondgbps:giga bit per sondoss: open source softwarewifi:wireless fidelityGPRS:General packet radio system3G:third Generation of mobile communicationfloss: free libre and open source software.osi: open system initialtive .iso:international  standard organization.slip: serial line internet protocolNIC:network interface cardNIU:network interface unitMAC:medium access controlppp: point to point protocolvpn: virtual private networkvoip : voice over internet protocolhtml:hyper text markup languagexml:extensioble mark up languageFDM:frequency division multiplexingTDM :Time Division MultiplexingFSF: free software foundationW3C: world wide web consortiumwww:world wide webGNU:GNU is not unixIPR: intellectual property rightsDHTML:dynamic hyper text markup languageURL:uniform resources locator
IRC: internet relay chatSIP :session initiation protocolSim:subscriber identification moduleUtp :unshielded twisted pairStp:shielded twisted pairFsf:free software foundation