Glossary
Portégé A100
11
Portégé A100
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as
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
Assistants.
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.
S-video:
This connection provides separate lines for contrast and colour,
which produces a video image superior to that produced by a
composite connection.
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 MS-DOS 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 typewriter-like keyboard and CRT display screen connected
to the computer for data input/output.
TFT:
Thin-film transistor. A color LCD technology that applies individual
transistors to each pixel enabling fine display control and excellent
screen legibility.
Touch pad:
A pointing device integrated into the TOSHIBA computer
palm rest.
TTL:
Transistor-transistor logic. A logic circuit design that uses switching
transistors for gates and storage.
