230 SPARCstation 20 Service Manual • July 1996
default A preset value that is assumed to be correct unless changed by the user.
disk A round platter, or set of platters, coated with magnetic medium and
organized into concentric tracks for storing data.
disk drive The mechanism that rotates a disk.
diskette A removable disk of magnetic medium for storing software and information.
diskette drive A device that reads and writes diskettes. If installed, the diskette drive access
is located on the right side of the SPARCstation 20 system unit.
DMA Direct memory access.
DRAM Dynamic random access memory.
DSIMM DRAM single in-line memory module. A small printed circuit card that
contains DRAM chips.
Ecache External cache is a cache that is located external to the microprocessor. See
cache.
ECC Error correcting code.
Ethernet A type of network hardware that allows communications between systems
connected together by transceiver taps, transceiver cables, and a coaxial cable.
Forth A high-level programming language. A major feature of Forth is that user-
defined operators can be used as primitives.
Forth Toolkit An interactive command interpreter based upon the Forth programming
language. The Toolkit provides access to an extensive set of functions for
performing fault isolation and debugging.
frame buffer board A printed circuit board installed in an SBus slot of the system unit that controls
a video display.
IC Integrated circuit.
ID Identification.
I/O input/output. A device that inputs data to a computer CPU and receives data
from a computer CPU.
keyboard Input device for entering data.
keyboard port The port on the SPARCstation 20 system unit where the keyboard cable is
connected.
LANCE Local area network control for Ethernet.
LED Light emitting diode.
location See address.
To Next Page
Loading...
Need help?
General
