Glossary
R
Radio frequency interference (RFI) shield: A metal shield enclosing the printed circuit boards of the printer or computer to prevent radio and TV interference. All computer equipment generates radio frequency signals. The FCC regulates the amount of signals a computing device can allow past its shielding. A Class A device is sufficient for office use. Class B provides a more stringent classification for home equipment use. TOSHIBA portable computers comply with Class B computing device regulations.
RAMDRIVE: Part of the computer’s random access memory assigned to simulate a disk. RAMDRIVE is a feature of MSDOS.
Random Access Memory (RAM): High speed memory within the computer circuitry that can be read or written to.
RCA jack: A singlepin connector that carries composite video signals, which include both contrast and colour information. See also S video.
restart: Resetting a computer without turning it off (also called ‘warm boot’ or ‘soft reset’). To restart the computer, press Ctrl + Alt + Del while the computer is on. See also boot.
resume: A feature that lets you turn off the power without first exiting a program and retain your data in RAM. When you turn on the computer, the screen appears the same as when you turned it off.
RGB: Red, green, and blue. A device that uses three input signals, each activating an electron gun for a primary additive colour (red, green, and blue) or port for using such a device. See also CRT.
RJ11: A modular telephone jack.
ROM: Read Only Memory: A nonvolatile memory chip manufactured to contain information that controls the computer’s basic operation. You cannot access or change information stored in ROM.
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