Glossary
refresh rate The number of times per second the graphics
adapter sends an image to the monitor.
reset Clear the memory of a computer and reload the
operating system usually done by pressing the reset
button or <CTRL/ALT/DEL>.
ROM Read-only memory. This type of memory can only be
read from.
screen mode The format (including resolution and number of
colours) in which information is presented on the
screen.
serial interface An interface which transmits or receives signals one
piece at a time.
serial number The unique number assigned to a computer (or a
component); on RM computers, the serial number
is on the rear of the computer e.g. M012345678.
server A computer which controls the activities of a
network.
SIMM/DIMM Single Inline Memory Module/Dual Inline Memory
Module; A small plug-in board containing DRAM
chips. SIMMs provide your computer's memory.
software Programs such as operating systems, applications
or languages.
standalone A computer used on its own rather than linked into
a network.
stop bit A serial communications parameter used to make
sure that transmitting and receiving equipment are
in step with one another.
system board The main printed circuit board inside a computer on
which the processor and RAM are attached.
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