Digital Equipment DEC 3000 500X AXP Owner's Manual page 250

floating point
A number that may be positive or negative but that has a whole
(integer) portion and a fractional (decimal) portion; an arithmetic
operation in which the decimal point is not fixed, but placed
automatically in a correct position in a computer word.
frame buffer
An area of memory that contains a pixel-level description of a
displayed image. The frame buffer is also used to refresh the
raster display.
FRU
See Field Replaceable Unit.
gigabyte (GB)
The measure used to refer to memory or secondary storage
capacity, equal to 1,024 megabytes or 1,073,741,824 bytes.
GKS (Graphical Kernal System) application
An application that uses the GKS graphics system and language
to create two-dimensional (2D), three-dimensional (3D), and
raster images on the screen. A GKS application can be developed
on one system and easily moved to another system.
graphics
A computer output of drawings, charts, and graphs.
half-height disk
Any 1 5/8-inch fixed drive that is 3½ inches (9-centimeters) wide,
such as those in the RZ family; or a 1 5/8-inch removable drive
that is 5-inches (12.7-centimeters) wide, such as a compact disc.
halt
The action of stopping the CPU from processing. This action
brings the system under the control of the console program. A
halt can occur when an internal system error is detected, when
you enter the HALT command at the console terminal, or when
you press the Halt button on the back of the system unit.
Glossary–13