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bus
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A signal route to which several parts of a computer system may be connected
so that signals can pass between them.
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Desktop Storage Module
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An external data storage unit that contains either a full-height high capacity
hard disk drive or a tape drive which uses 8mm tapes.
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Desktop Storage Pack
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An external data storage unit that contains a hard disk drive (Desktop Disk
Pack), a tape drive (Desktop Backup Pack), or a compact disc drive (Desktop
SunCD Pack) that can be connected to a computer system or to the SBus
Expansion Subsystem.
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device driver
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Software that controls the Expansion Adapter card.
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EPROM
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Erasable programmable read-only memory.
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Expansion adapter card
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A single-width SBus card which must be inserted into the computer system in
order to operate the SBus Expansion Subsystem. This card transmits SBus
related information to external hardware.
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Expansion Cable
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See SBus Expansion Subsystem cable.
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External Storage Module
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An external unit that contains disk or tape drives and that can be connected to
a computer system or to the SBus Expansion Subsystem.
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kernel
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The core of the SunOS system software that manages all the resources of the
system, including file system management, virtual memory, reading and
writing files to disk and tapes, scheduling of processes, printing, and
communicating over a network. System administrators can configure a kernel
to improve system performance. A system cannot run without a functioning
system kernel.
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MMU
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Memory management unit chip on the main logic board of your computer
system.
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SBus card
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A printed circuit board which can be installed in either the computer system or
the SBus Expansion Subsystem.
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SBus Expansion Subsystem
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A peripheral device attached to a computer system. The SBus Expansion
Subsystem provides three additional SBus slots and space for two optional
SCSI hard disk drives. The SBus Expansion Subsystem consists of the
following: the SBus Expansion Subsystem chassis, the Expansion adapter card
(in the computer system), and the SBus Expansion Subsystem cable.
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SBus Expansion Subsystem cable
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A shielded round cable which connects the Expansion adapter card, installed
in the computer system, and the 96-pin connector on the back panel of the
SBus Expansion Subsystem. The SBus Expansion Subsystem cable has 96-pin
female connectors on each end.
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SBus Expansion Subsystem controller board
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A printed circuit board which occupies the bottom of the SBus Expansion
Subsystem chassis. The SBus Expansion Subsystem controller board consists of
the following modules: connectors, control logic, clock logic, cable differential
drivers and receivers, and the main chip for the SBus Expansion Subsystem.
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SCSI
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An acronym for Small Computer System Interface that is pronounced
"scuzzy".
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SCSI connector
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There are two SCSI connectors (ports) on the back panel of the SBus Expansion
Subsystem. The SCSI connectors on the SBus Expansion Subsystem are used to
connect SCSI devices, such as disk drives, Desktop Storage Packs, Desktop
Storage Modules, and External Storage Modules.
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SCSI terminator
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A device that terminates the signal coming through an unused SCSI connector.
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You must terminate the last SCSI connector in the SCSI bus.
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slot
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An electronic connection and a long, narrow groove or opening in the
computer system and the SBus Expansion Subsystem designed to receive a
printed circuit board (such as an SBus card).
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SunDiag
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Diagnostic software which runs under the SunOS software. SunDiag tests the
functionality of the SBus Expansion Subsystem hardware, such as the SBus
Expansion Subsystem controller board and the Expansion Adapter card.
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wrist strap
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A device that provides grounding for static electricity between your body and
the SBus Expansion Subsystem or the computer system. Electric current and
voltage do not pass through the wrist strap. Before installing or removing SBus
cards or disk drives, attach the wrist strap. Before inserting or removing the
Expansion adapter card in the computer system, attach a wrist strap.
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