Understanding Data Communications
This book connects users to the real world by teaching digital communications, the inner workings of data terminals, modems, fiber optics, and satellites.Covers the fundamentals, the functions of data terminals and their components, and the latest network architecture and design techniquesProvides information on the advantages and disadvantages of LAN, packet networks, and network design and managementWritten by a world-renowned expert-Gil Held
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An Overview of Data Communications 1
An Overview of Data Communications
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64 Kbps adapter card analog applications ASCII bandwidth baud binary BiSync block bytes called capability carrier cell channel circuit coaxial cable command compression connection connector CRT terminals data communications data compression data link data rate datagram defined developed devices display EBCDIC enables encoded equipment error detection Ethernet fiber fiber-optic file transfer file transfer protocol flow control format frame relay frequency full-duplex functions header illustrates input interface ISDN ITU-T keyboard LAPB local area network Mbps modem modulation multiplexer operating rate optical fiber packet network personal computer physical layer port printer ProcommPlus protocol pulses Received Data represents satellite sequence serial shown in Figure Signal Element standard station switching synchronous technique telephone network teleprinter tion token-ring transmission transmit data voice wire workstations zero