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TECRA M2 11
Glossary
RJ45: A modular LAN jack.
ROM: Read Only Memory: A nonvolatile memory chip manufactured to
contain information that controls the computer’s basic operation.
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
Assistants.
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.
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 color 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
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.