Personal Computer User Manual

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 d
irectories 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.
SIMM
See Memory module.
Software
The programs that enable your computer to perform the tasks
and functions you indicate.
18 Glossary