GCC Printers Elite XL - Manual (Page 195)

Glossary K-3
Glossary
LocalTalk cable system: Apple’s network cable system used to support an
AppleTalk network system.
megabyte: A unit of measurement equal to 1024 kilobytes, or 1,048,576 bytes.
network: A group of computers and peripheral devices, such as printers, that
are interconnected so they can communicate with each other. A network also
includes the hardware, such as cables that connect the devices, and the software
that allows them to communicate.
outline fonts: Fonts whose characters are built using mathematical representa-
tions.
parity: A bit (number) in serial communication that is used to detect bad data
transmission.
peripheral device: Any device used to input, output, or exchange data. See
device.
port: A communication connection located on the back of a computer and
peripheral device.
PostScript: A high-level page description language. PostScript commands
describe the text and graphic images in a document.
printer description files: Files that allow applications to use printer-specific
features.
printer driver: The software that creates a page description when you want to
print a document. This description is sent to the printer for printing.
printing software: Software needed for printing that includes the printer driver
and other related files.
resolution: The number of dots per unit of length or area.
RAM (Random-Access Memory): Temporary storage area for information.
This information is lost every time the computer is shut down.
ROM (Read-only Memory): Permanent storage area for information.
RS-422: An 8-pin hardware interface that allows the transfer of data in an
asynchronous serial format. It has five user-defined parameters: baud rate, data
bits, stop bits, parity, and flow control. The Elite XL’s RS-422 interface is
shared with the LocalTalk interface.