Computer Networks Notes : introduction to networks, types of networks, introduction to physical layer, comparison of osi and tcp/ip protocols, data link layer design issues, sliding window protocols, multiple access protocols, network layer design issues, connection less and connection oriented protocols, routing protocols, ip address, transport layer services, provided, the internet transport protocols, application layer services, applications layer, data representation, data flow, simplex, half-duplex, full-duplex, point-to-point, physical topology, mesh topology, advantages of ring topology, hybrid topology, classes of transmission media, circuit switched networks, data transfer phase.