Glossary_ 67
MMR
Modified Modified READ (MMR) is a compression method
recommended by ITU-T T.6.
Modem
A device that modulates a carrier signal to encode digital information,
and also demodulates such a carrier signal to decode transmitted
information.
MR
Modified Read (MR) is a compression method recommended by ITU-T
T.4. MR encodes the first scanned line using MH. The next line is
compared to the first, the differences determined, and then the
differences are encoded and transmitted.
NetWare
A network operating system developed by Novell, Inc. It initially used
cooperative multitasking to run various services on a PC, and the
network protocols were based on the archetypal Xerox XNS stack.
Today NetWare supports TCP/IP as well as IPX/SPX.
OPC
Organic Photo Conductor (OPC) is a mechanism that makes a virtual
image for print using a laser beam emitted from a laser printer, and it is
usually green or rust colored and has a cylinder shape.
An imaging unit containing a drum slowly wears the drum surface by its
usage in the printer, and it should be replaced appropriately since it gets
worn from contact with the cartridge development brush, cleaning
mechanism, and paper.
Originals
The first example of something, such as a document, photograph or text,
etc, which is copied, reproduced or translated to produce others, but
which is not itself copied or derived from something else.
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.
PPM
Pages Per Minute (PPM) is a method of measurement for determining
how fast a printer works, meaning the number of pages a printer can
produce in one minute.
PRN file
An interface for a device driver, this allows software to interact with the
device driver using standard input/output system calls, which simplifies
many tasks.
Protocol
A convention or standard that controls or enables the connection,
communication, and data transfer between two computing endpoints.
PS
See PostScript.
PSTN
The Public-Switched Telephone Network (PSTN) is the network of the
world's public circuit-switched telephone networks which, on industrial
premises, is usually routed through the switchboard.
RADIUS
Remote Authentication Dial In User Service (RADIUS) is a protocol for
remote user authentication and accounting. RADIUS enables
centralized management of authentication data such as usernames and
passwords using an AAA (authentication, authorization, and accounting)
concept to manage network access.
Resolution
The sharpness of an image, measured in Dots Per Inch (DPI). The
higher the dpi, the greater the resolution.
SMB
Server Message Block (SMB) is a network protocol mainly applied to
share files, printers, serial ports, and miscellaneous communications
