raster.
In
computer graphics, a predetermined
pattern
of lines
that
provides uniform coverage of a display space.
read.
To
acquire
or
interpret
data
from a storage device, from a
data
medium, or from another source.
read-only memory (ROM). A storage device whose contents
cannot
be
modified. The memory
is
retained when power
is
removed.
read/write memory. A storage device whose contents can be
modified. Also called RAM.
recoverable error.
An
error condition
that
allows continued
execution
of
a program.
red-green-blue-intensity (RGBI). The description of a
direct-drive color monitor
that
accepts input signals of red, green,
blue,
and
intensity.
redundancy check. A check that depends
on
extra characters
attached to data for the detection of errors. See cyclic redundancy
check.
register. (1) A storage device, having a specified storage
capacity such as a bit, a byte,
or
a computer word, and usually
intended for a special purpose. (2) A storage device in which
specific
data
is
stored.
retry.
To
resend the current block of data (from the last EOB
or
ETB) a prescribed number of times,
or
until it
is
entered correctly
or
accepted.
reverse video. A form
of
highlighting a character, field,
or
cursor
by
reversing the color of the character, field,
or
cursor with its
background; for example, changing a red character
on
a black
background
to
a black character
on
a red background.
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.
GIossary-29
To Next Page
Loading...
Need help?
General
