Glossary 183
OSI
Open Systems Interconnection (OSI) is a model developed by the
International Organization for Standardization (ISO) for
communications. OSI offers a standard, modular approach to
network design that divides the required set of complex functions
into manageable, self-contained, functional layers. The layers are,
from top to bottom, Application, Presentation, Session, Transport,
Network, Data Link and Physical.
PABX
A private automatic branch exchange (PABX) is an automatic
telephone switching system within a private enterprise.
PCL
Printer Command Language (PCL) is a Page Description Language
(PDL) developed by HP as a printer protocol and has become an
industry standard. Originally developed for early inkjet printers, PCL
has been released in varying levels for thermal, dot matrix printer,
and laser printers.
PDF
Portable Document Format (PDF) is a proprietary file format
developed by Adobe Systems for representing two dimensional
documents in a device independent and resolution independent
format.
PostScript
PostScript (PS) is a page description language and programming
language used primarily in the electronic and desktop publishing
areas. - that is run in an interpreter to generate an image.
Printer Driver
A program used to send commands and transfer data from the
computer to the printer.
Print Media
The media like paper, envelopes, labels, and transparencies which
can be used in a printer, a scanner, a fax or, a copier.