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RGB
Red Green Blue. A type of color monitor.
ROM
Read Only Memory. A portion of memory that can only be
read and cannot be used for temporary storage. ROM retains its
contents even when you turn off the power.
Root directory
The top level directory in MS-DOS, designated by a \
(backslash). All other directories are subdirectories of the root
directory or of other subdirectories.
RS-232C
A widely-used, standard type of serial interface. You can easily
connect an RS-232C-compatible device to the computer.
Sector
A contiguous section of a disk track that provides an address at
which the computer can access data.
Self test
The initial diagnostics procedures a system performs to check
its hardware.
Serial
The type of interface that transmits data one bit at
a time. See
Interface and Parallel.
software
The programs that enable your computer to perform the tasks
and functions you indicate.
14 Glossary