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Computer Networks Introduction to telecommunication networks. Principles of networks design: networks architecture, layers, types of telecommunication services, switching, resource multiplexing, types of networks. Physical Layer: Transmission, transmission lines, synchronization, error checking. Data Link Layer: protocols of data link layer, higher-level protocols for retransmission, design and correctness of protocols. Local Area Netwotks (LANs): ALOHA, Ethernet, Bus network topology and ring network topology, FDDI, DQDB. Network layer: host addressing, message forwarding, routing, congestion. Transport layer: TCP, UDP. Session layer. Presentation layer: Encryption, compression, syntax conversion. Application layer. Services: type of services, integration of services, Quality of Service. Networks Performance: Simulation, Queuing Theory.