US Robotics COURIER Uživatelský manuál stáhnout pdf (Strana 298)

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101

U.S. Robotics I-modem Command Reference

Glossary • Page G-40

synchronous transmission

A form of transmission in which blocks of data are sent at strictly timed intervals. Because

the timing is uniform, no start or stop bits are required. Compare asynchronous transmis-

sion.

Some mainframes only support synchronous communications unless their owners have

installed a synchronous adapter and appropriate software.

TEI

See Terminal Endpoint IdentiÞer.

terminal

A device whose keyboard and display are used for sending and receiving data over a com-

munications link. Differs from a microcomputer in that it has no internal processing capa-

bilities. Used to enter data into or retrieve processed data from a system or network.

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