Glossary
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: The handling of data bits one after the other.
SIO: Serial Input/Output. The electronic methodology used in serial data transmission.
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.
subpixel: Three elements, one red, one green and blue (RGB), that make
up a pixel on the colour LCD. The computer sets subpixels independently, each may emit a different degree of brightness. See also pixel.
synchronous: Having a constant time interval between successive bits, characters or events.
system disk: A disk that has been formatted with an operating system. For MSDOS the operating system is contained in two hidden files and the COMMAND.COM file. You can boot a computer using a system disk. Also called an operating system disk.
T
terminal: A typewriterlike keyboard and CRT display screen connected to the computer for data input/output.
TFT: A colour LCD technology that applies individual transistors to each pixel enabling fine display control and excellent screen legibility.
TTL: Transistortransistor logic. A logic circuit design that uses switching transistors for gates and storage.
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