TECHNOLOGY GUIDE FOUR Basics of Telecommunications and Networks
Analog and Digital Signals
Typical Telecommunications System
Communications Media and Channels Twisted-pair wire Coaxial cable Fiber optics
Twisted Pair Wire
Coaxial Cable
Fiber Optics CableCable
Transmission Speed Bandwidth Narrowband Broadband
Transmission Technologies Integrated Services Digital Network Digital Subscriber Line Asynchronous Transfer Mode Synchronous Optical Network T-Carrier System
Types of Networks A computer network is a system that connects computers via communications media so that data can be transmitted among them. Local area networks Wide are network Value-added network Enterprise network
Local Area Network
Enterprise Network
Network Fundamentals Network Protocol Ethernet Transmission Control Protocol/Internet Protocol Types of Network Processing Client/server Peer-to-Peer processing
Packet Switching