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BASIC ELECTRONICS

on April 28, 2018

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TOKEN RING

2. Token Ring = Token Ring local area network (LAN) technology is a communications protocol for local area networks. It uses a special three-byte frame called a "token" that travels around a logical "ring" of workstations or servers.

MAN

MAN (metropolitan area network) :- ) A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN). * Interconnect with in the city * The speed varies from 10Mbps to 100Mbps

OSI MODEL

OSI (OPEN SYSTEM INTERCONNECTION) -It is a reference model -In actual we use TCP/IP (transimition control protocol / internet protocol) -It consist of 7 layers - It is developed by ISO ( International orginasition for standardisition ) PHYSICAL LAYER :- - Data will be in bits - Bits will be converted into light signals or electric signals - protocol data unit is bits DATA LINK LAYER :- -It adds hedder & trailer -Header & trailer cotains MAC address of source and destination -Header contains destination MAC address -Trailer contains source MAC address -protocol data unit is frame Network layer :- -the routing layer -It provides addressing and routing service - There are 2 addresses in packet one is source address & another is destination address -The primary network protocol on the neternet , IPv4 ,IPv6 logical addressing -It is used to connect multiple network -network layer does not broadcast...

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BASIC ELECTRONICS

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