IBM 6400 Programmer's Reference Manual page 225

M
marker. A symbol with a recognizable appearance
that is used to identify a particular location. An
example of a marker is a symbol that is positioned by
the center point of its cell.
marker attributes. The characteristics that control
the appearance of a marker. Examples of marker
attributes are size and color.
marker cell. A conceptual rectangular box that can
include a marker symbol and the space surrounding
that symbol.
marker precision. A method used to specify the
degree of influence that marker attributes have on the
appearance of a marker.
marker set. In GOCA, an attribute used to access a
coded font.
marker symbol. A symbol that is used for a marker.
meaning. A table heading for architecture syntax.
The entries under this heading convey the meaning or
purpose of a construct. A meaning entry can be a
long name, a description, or a brief statement of
function.
media. Plural of medium. See also medium.
media destination. The destination to which sheets
are sent as the last step in the print process.
Contrast with media source.
media source. The source from which sheets are
obtained for printing. Some printers support several
media sources so that media with different
characteristics (such as size, color, and type) can be
selected when desired. Contrast with media
destination.
medium. A two-dimensional conceptual space with a
base coordinate system from which all other
coordinate systems are either directly or indirectly
derived. A medium is mapped onto a physical
medium in a device-dependent manner. Synonymous
with medium presentation space. See also logical
page, physical medium, and presentation space.
medium presentation space. A two-dimensional
conceptual space with a base coordinate system from
which all other coordinate systems are either directly
or indirectly derived. A medium presentation space is
mapped onto a physical medium in a
device-dependent manner. Synonymous with
medium. See also logical page, physical medium, and
presentation space.
mixing rule. A method for specifying the color
attributes of the resulting foreground and background
in areas where two presentation spaces intersect.
Mixed Object Document Content Architecture
(MO:DCA). An architected, device-independent data
stream for interchanging documents.
MO:DCA. See Mixed Object Document Content
Architecture.
model space. A two-dimensional conceptual space in
which a picture is constructed. All model transforms
are completed before a picture is constructed in a
graphics model space. Contrast with graphics
presentation space. Synonymous with graphics model
space.
model transform. A transform that is applied to
drawing-order coordinates. Contrast with viewing
transform.
module. In a bar code symbology, the nominal width
of the smallest element of a bar or space. Actual bar
code symbology bars and spaces can be a single
module wide or some multiple of the module width.
The multiple need not be an integer.
modulo-N check. A check in which an operand is
divided by a modulus to generate a remainder that is
retained and later used for checking. An example of
an operand is the sum of a set of digits. See also
modulus.
modulus. In a modulo check, the number by which an
operand is divided. An example of an operand is the
sum of a set of digits. See also modulo-N check.
N
NACK. See Negative Acknowledge Reply.
name. A table heading for architecture syntax. The
entries under this heading are short names that give
a general indication of the contents of the construct.
Negative Acknowledge Reply (NACK). In the IPDS
architecture, a reply from a printer to a host,
indicating that an exception has occurred. Contrast
with Positive Acknowledge Reply.
no operation (NOP). A construct whose execution
causes a product to proceed to the next instruction to
be processed without taking any other action.
O
object. (1) A collection of structured fields. The first
structured field provides a begin-object function, and
the last structured field provides an end-object
function. The object can contain one or more other
structured fields whose content consists of one or
more data elements of a particular data type. An
object can be assigned a name, which can be used to
reference the object. Examples of objects are text,
Glossary of Abbreviations and Definitions
Glossary
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