Computer Networks. Instructor: Prof. Sujoy Ghosh, Department of Computer Science and Engineering, IIT Kharagpur. This course discusses the fundamentals of computer networks. The emergence of computer networks, an overview of OSI reference model. Network topology: Bus, Star, Ring, and Mesh topologies. Physical medium: Benefits of digital transmission, Data encoding techniques, Wire propagation effects, UTP cables, Coaxial cables, Optical fibers, Wireless transmission. Multiplexing: FDM, WDM, TDM, STDM. The evolution of telecom networks. Packet switches. SONET/SDH. Fiber optic components and fiber optic communication. Multiple access protocols: FDMA, TDMA, CDMA, Token Ring, FDDI. Data link protocols. Error detection and correction. Satellite communication. Ethernet. Cellular Networks, Wireless networks: Wireless LAN and MAN, Bluetooth. ATM (Asynchronous Transfer Mode). Routing. TCP/IP. Network management and security.