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G
LOSSARY
98
ROM
Read Only Memory. Permanent memory, not
user-programmable.
serial transmission
The consecutive flow of data in a single
channel. Compare to parallel transmissions
where data flows simultaneously in multiple
channels.
start/stop bits
The signaling bits attached to a
character
before and after the character is transmitted
during
asynchronous transmission
.
terminal
A device whose keyboard and display are
used for sending and receiving data over a
communications link. Differs from a
microcomputer or a mainframe in that it has
little or no internal processing capabilities.
terminal mode
Software mode that allows direct
communication with the modem. Also known
as command mode.
throughput
The amount of actual user data transmitted per
second without the overhead of
protocol
information such as
start/stop bits
or
frame
headers and trailers. Compare with
characters per second
.