222
BOCA PRO16 Reference Guide
BPS
An acronym for Bits Per Second. Transmission rate of binary
numbers. Compare with Baud.
Break
A special, non-data signal used by computer equipment to
interrupt some processes.
Buffer
Temporary storage area used to compensate for a difference in
the rate of data flow into and out of a device.
Bulletin Board
A generic term covering a wide variety of on line information
services. Many bulletin boards are open to the public, run at no
cost to users and provide the ability to download public domain
software and exchange electronic mail.
Byte
A grouping of bits to specify a single character usually consisting
of eight consecutive bits. See also Bit.
C
Carrier signal
An analog signal of known specifications, such as level and
frequency, which is modulated by another signal containing
information to be transmitted. This is the high-pitched sound
you can hear when you first connect to a remote system.
Carrier Detect
An RS-232 interface signal from the modem to a terminal or
personal computer indicating that the modem is receiving a
signal from a remote modem. See also DCD.
CCITT
International Telegraph and Telephone Consultative Committee.
An international committee which establishes recommended
communications standards.
CCITT Vxx
International standards in communications concerned with
modem interfaces, speeds and transmission modes.
CCITT X25
International standard defining the protocol used in accessing a
packet switching network.
Channel
An electronic communications path. A voice grade channel
generally ranges from 300 to 4000 Hz.
Glossary
Glossary
pro16ref.pm6 6/14/96, 2:40 PM222
To Next Page
Loading...