Xerox 4635 User Interface Reference page 168

GLOSSARY
operating
operator
page
GLOSSARY-14
online Devices under the direct control of a central processing unit, for
example a printing system in interactive communication with a
mainframe. See also offline.
system Basic host- or LPS-resident controlling program that governs the
operations of a computer, such as job entry, input/output, and
data management. The operating system is always running when
the computer is active. Unlike other types of programs, it does
not run to an end point and stop. The operating system of a
Xerox LPS is referred to as the operating system software (OSS).
operation Well-defined action that, when applied to any permissible
combination of known entities, produces a new entity.
operator 1. Part of a process description that indicates the action to be
performed on an operand. For example, ADD is an operator that
uses two operands (in this case numbers) and produces a third.
2. Person who operates a device.
operator area The 24-inch exclusive clearance that must be available directly in
front of each component of an LPS for operator activities.
command Statement to control a program, issued through a console
device, PC UI, or terminal, causing a control program to provide
requested information, alter normal operations, initiate new
operations, or terminate existing operations.
orientation 1. In reference to image area, orientation describes whether the
printed lines are parallel to the long edge of the paper or the
short edge of the paper. 2. Choice of printing portrait
(vertically) or landscape (horizontally).
origin In reference to image area, this is the upper left corner of a
sheet.
output 1. Material produced by a peripheral device of a computer, such
as a printout or a magnetic tape. 2. Result of completed
operations.
override To take precedence or priority over, to overrule.
overstrike To print characters over each other.
page 1. In computer programming, a block of instruction, data, or
both that can be located in main or auxiliary storage. 2. In word
processing, a defined section of a document.
orientation Direction in which data is printed on a report. See also
landscape page orientation; portrait page orientation.
pagination Process of separating text into pages.
XEROX 4635 LASER PRINTING SYSTEM PC USER INTERFACE REFERENCE