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R
Radio frequency interference (RFI) shield: A metal shield enclosing the
Random Access Memory (RAM): High speed memory within the
restart: Resetting a computer without turning it off (also called 'warm
RCA jack: A single-pin connector that carries composite video signals,
RGB: Red, green, and blue. A device that uses three input signals, each
RJ11: A modular telephone jack.
ROM: Read Only Memory: A nonvolatile memory chip manufactured to
RS-232C: The Electronic Industries Association (EIA) interface standard
S
SCSI: Small Computer System Interface is an industry standard interface
serial: The handling of data bits one after the other.
serial communications: A communications technique that uses as few
serial interface: Refers to a type of information exchange that transmits
serial port: A communications port to which you can connect devices,
SIO: Serial Input/Output. The electronic methodology used in serial data
TOSHIBA TE2300
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.
computer circuitry that can be read or written to.
boot' or 'soft reset'). To restart the computer, press Ctrl + Alt + Del
while the computer is on. See also boot.
which include both contrast and color information. See also
S-video.
activating an electron gun for a primary additive color (red, green,
and blue) or port for using such a device. See also CRT.
contain information that controls the computer's basic operation.
You cannot access or change information stored in ROM.
that describes the 25-pin connector interface and control, data,
and status signals that allow asynchronous communications
between computers, printers, communications and other
peripheral devices.
for connection of a variety of peripheral devices.
as two interconnecting wires to send bits one after another.
information sequentially, one bit at a time. Contrast: Parallel
interface.
such as a modem, mouse, or serial printer.
transmission.
Glossary
13
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