RF. Radio frequency.
RF
modulator. The device
used
to convert the composite video
signal to the antenna level input
of
a home TV.
RGBI. Red-green-blue-intensity.
rising edge. Synonym for positive-going edge.
ROM. Read-only memory.
ROM/BIOS.
The
ROM
resident basic
input/output
system,
which provides the level control
of
the major
I/O
devices in the
computer system.
row address strobe (RAS). A signal
that
latches the row address in
a memory chip.
RS-232C. A standard by the
EIA
for communication between
computers and external equipment.
RTS. Request to send. Associated with modem control.
run. A single continuous performance of a computer program
or
routine.
schematic. The representation, usually in a drawing
or
diagram
form,
of
a logical
or
physical structure.
Schottky TTL. A version
(S
series)
of
TTL
with faster switching
speed,
but
requiring more power. See also transistor-transistor
logic and low power Schottky TTL.
~
SDLC. Synchronous
Data
Link Control
Glossary-30