Glossary 247
Terms
RRAM (random access memory) — Volatile memory that can be written to as well as read. By volatile, we mean that information in
RAM is lost when you turn off your computer. This type of memory is used for your computer’s main memory. See also memory. Compare ROM.
random access memory — See RAM.
reboot — See boot, restart.
removable disk — A disk that can be removed from a disk drive. A diskette is one example of a removable disk.
resolution — A measure of the sharpness of the images that can be produced by a printer or displayed on a screen. For a printer, resolution is expressed in dots per inch (dpi). For a screen, it is expressed as the number of pixels available horizontally and vertically.
restart — Synonymous with reboot. To reset the computer by reloading the operating system without turning the computer off. See also boot.
RJ11 — A modular connector used on most U.S. telephone systems and
ROM
Sselect — To highlight or otherwise specify text, data, or graphics with the intent to perform some operation on it.
serial — Processes that occur one at a time. In communications, it means the transmission of one bit at a time sequentially over a single channel. On your computer, the serial port provides a serial interface between the computer and an appropriate device. Compare parallel.
shortcut — See keyboard shortcut.
software — See program. Compare hardware.