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In this chapter, students will be able to understand: Benefits of telecommunication networks in business; networking basics: architecture, topology, protocols, media; network applications; connected computers, size of computer networks, mobile computing, types of networks;. | TELECOMMUNICATION & NETWORK APPLICATIONS PART 2 LEARNING OBJECTIVES Benefits of telecommunication networks in business Networking basics: Architecture, Topology, Protocols, Media Network applications COMPUTER NETWORKS Connected computers Size of Computer Networks Mobile Computing Types of Networks TOPOLOGY Which network topology is being used in your college? If you could choose one type of topology for your college – what would it be and why? Ring Network Star Network Bus Network Hybrid Network COMPUTER NETWORKING Centralized Computing Terminals and Mainframe Distributed Computing Many computers process one task Collaborative Computing Network computers process one task CENTRALIZED COMPUTING DISTRIBUTED COMPUTING COLLABORATIVE COMPUTING Network Computers Computer Networks NETWORK HARDWARE Transmission Media Connectors Network interface card (NIC) Modems (MOdulator/DEModulator) Repeaters Hubs Bridges Multiplexers Routers Brouters (bridge routers) Channel service units Gateways COMMUNICATIONS MEDIA Twisted-pair wire Coaxial cable Fiber optics Twisted-pair wire: most prevalent form of communications wiring; consists of strands of copper wire twisted in pairs. Coaxial cable: insulated copper wire used to carry high-speed data traffic and television signals. Fiber optics: thin filaments of glass fibers that transmit information via light pulses generated by lasers. Wire Media WIRELESS MEDIA Infrared line of sight High-frequency radio Pager – one way wireless Cellular phone – two way wireless Wireless LANs Microwave Terrestrial Satellite Wireless Media Wireless Media TRANSMISSION MEDIA The pathway to send data and information between two or more entities on a network Bandwidth – transmission capacity (Mbps Megabits per second), Narrowband, Broadband Attenuation – weakening of a signal over distance EMI – electromagnetic interference from weather or other electronic signals TRANSMISSION TECHNOLOGIES Integrated Services Digital Network Digital Subscriber Line . | TELECOMMUNICATION & NETWORK APPLICATIONS PART 2 LEARNING OBJECTIVES Benefits of telecommunication networks in business Networking basics: Architecture, Topology, Protocols, Media Network applications COMPUTER NETWORKS Connected computers Size of Computer Networks Mobile Computing Types of Networks TOPOLOGY Which network topology is being used in your college? If you could choose one type of topology for your college – what would it be and why? Ring Network Star Network Bus Network Hybrid Network COMPUTER NETWORKING Centralized Computing Terminals and Mainframe Distributed Computing Many computers process one task Collaborative Computing Network computers process one task CENTRALIZED COMPUTING DISTRIBUTED COMPUTING COLLABORATIVE COMPUTING Network Computers Computer Networks NETWORK HARDWARE Transmission Media Connectors Network interface card (NIC) Modems (MOdulator/DEModulator) Repeaters Hubs Bridges Multiplexers Routers Brouters (bridge routers) Channel service units Gateways .
