Glossary-2
SPARCstation 4 Model 110 Service Manual
•
July 1996
FORTH
A high-level programming language. A major feature of FORTH is that user-
defined operators can be used as if they were primitives.
FORTH Toolkit
An interactive command interpreter based on the FORTH programming
language. While in the Toolkit, you will see the
ok
prompt. The Toolkit gives
you 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.
I/O
Input/output. A device that inputs data to a computer CPU and receives data
from a computer CPU. Examples of I/O devices include keyboards, mice,
monitors, and peripherals devices.
LED
Light-emitting diode.
MBus module
A printed circuit board installed in an MBus slot of the system unit that
contains the CPU circuitry and components.
Monitor (1)
Indicated by the
>
prompt. From the
>
prompt, you can boot the system,
continue the execution of a halted program, or enter the FORTH Toolkit.
Monitor (2)
A video display unit that is part of the SPARCstation 4 system. It is not
synonymous with terminal.
MMU
Memory management unit.
NVRAM
Nonvolatile RAM.
On-Board
Diagnostics
A test that allows you to test the control registers, the network controller,
the diskette drive system, memory, the cache, the system clock, and watch the
network for valid packets.
Pok
Power ok. A signal from the power supply that is activated after DC voltages
have risen.
POST
Power-On Self-Test. The POST runs when you turn on the system power
switch or reboot the system and press and hold the L1-d keys. The POST,
stored in the boot PROM, is a series of rudimentary tests designed to verify
that the major components on the system board are working properly.
PROM
Programmable read only memory.
RAM
Random access memory.
ROM
Read only memory.
SBus card
A printed circuit board installed in an SBus slot of the system unit.
SCC
Serial communications controller.
SCSI
Small computer system interface; pronounced “scuzzy.”
Summary of Contents for SPARCstation 4 110
Page 24: ...1 6 SPARCstation 4 Model 110 Service Manual July 1996...
Page 36: ...2 12 SPARCstation 4 Model 110 Service Manual July 1996...
Page 46: ...3 10 SPARCstation 4 Model 110 Service Manual July 1996...
Page 108: ...10 4 SPARCstation 4 Model 110 Service Manual July 1996...
Page 146: ...12 6 SPARCstation 4 Model 110 Service Manual July 1996...
Page 150: ...A 4 SPARCstation 4 Model 110 Service Manual July 1996...
Page 160: ...B 10 SPARCstation 4 Model 110 Service Manual July 1996...
Page 174: ...Glossary 4 SPARCstation 4 Model 110 Service Manual July 1996...
