Radio frequency interference (RFI) shield
GLOSSARY
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 classifica- tion for home equipment use. TOSHIBA portable computers comply with Class B computing device regulations.
RandomAccessMemory(RAM):
High speed memory within the computer circuitry that can be read or written to.
restart: Resetting a computer without turning it off (also called “warm boot” or “soft reset”). See also boot.
RGB: Red, green, and blue. A device that uses three input signals, each activating an electron gun for a primary additive color (red, green, and blue) or port for using such a device. See also CRT.
RJ11: A modular telephone jack.
RJ45: A modular LAN jack.
ROM: Read Only Memory: A nonvolatile memory chip manufac- tured to contain information that controls the computer’s basic opera- tion. You cannot access or change information stored in ROM.
S
SCSI: Small Computer System Interface is an industry standard interface for connection of a variety of peripheral devices.
SD cards: Secure Digital cards are flash memory widely used in a variety of digital devices such as digital cameras and Personal Digital Assis- tants.
SIO: Serial Input/Output. The electronic methodology used in serial data transmission.
Smart media: A storage card of about
soft key: Key combinations that emulate keys on the IBM keyboard, change some configuration options, stop program execution, and access the numeric keypad overlay.
software: The set of programs, procedures and related documentation associated with a computer system. Specifically refers to computer programs that direct and control the computer system’s activities. See also hardware.
stop bit: One or more bits of a byte that follow the transmitted character or group codes in asynchronous serial communications.
