Glossary
Analog signals
Variable and continuous waves, such as voice tones carried by telephone lines. Compare with digital signals.
ARQ
General term qualifying error correction protocols that detect errors and automatically
ASCII
Acronym for American Standard Code for Information Interchange. 7 bit binary code (0 and 1) used to represent letters, numbers and special characters such as $,! and /.
Asynchronous transmission
Data transmission during which the time between transmission of characters can vary. Since the time delays between characters are not uniform, the receiving modem must be signaled when the start and end of a characters data bits occur. Stop and start bits are therefore added to each character transmitted.
Baud rate
Number of state transitions per second on a communications channel. Even though it is incorrect from a strictly technical point of view, the baud rate is often used to indicate the transmission rate.
Sportster Winmodem 33600 & x2/56K - User's manual 61
