Digital Data CommunicationsA non-mathematical introduction to data communications aiming to provide a solid knowledge of how modern data communications, technology operates, a grounding in how it has evolved and where this evolution is likely to take it in the future. It includes a chapter on network topologies, as well as coverage of the telephone system, modems and modem standards and local area networks. |
Common terms and phrases
ACIA advantages allows amplitude analog ASCII begins Bell binary BISYNC block byte cable called carrier carry causes channel chapter character clock command communications system compression connected converts correct Data bit data communications designed detect devices diagram dial disadvantage discussed electronic equipment error Ethernet example field Figure frame frequency full-duplex functions indicates input intelligence signal interface internal interrupt layer levels logic loop means medium mode modem modulation node occur operate output parallel parity perform phase poll primary printer protocol pulse received data remote represent request requires ring sampling secondary Select sent serial shift shows signal speed standard status switch synchronous telephone circuit telephone line terminal tion Token transfer transmission transmit Transmit Data types voltage