Toshiba Tecra 8100 - Manual (Page 217)

User's Manual Glossary 11
Version
1
Last Saved on 10/12/99 02:16
Tecra 8100 User's Manual – 8100_UK.DOC – ENGLISH – Printed on 13/12/99 as IM8100UK
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 MS-DOS.
Random Access Memory (RAM): High speed memory within the
computer circuitry that can be read or written to.
RCA jack: A single-pin 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 non-volatile memory chip manufactured to
contain information that controls the computer’s basic operation.
You cannot access or change information stored in ROM.
RS-232C: The Electronic Industries Association (EIA) interface standard
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.
S
SCSI: Small Computer System Interface is an industry standard interface
for connection of a variety of peripheral devices.
serial communications: A communications technique that uses as few
as two interconnecting wires to send bits one after another.
serial interface: Refers to a type of information exchange that transmits
information sequentially, one bit at a time. Contrast: Parallel
interface.
serial port: A communications port to which you can connect devices,
such as a modem, mouse, or serial printer.
serial: The handling of data bits one after the other.