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Glossary
An address is a unique number determined by a switch
setting on the SCSI bus. Each device on the bus must
be set to its own number, so the host computer can
identify which device is currently active or addressed.
Each device connected to the Small Computer System
Interface (SCSI) bus must have its own unique address.
The address switches on the rear panel of the mass
storage system are connected to the installed hard disk
drives. The SCSI address settings for devices other than
hard disk drives are either switches or jumpers that are
located on the device itself.
An automatic ranging power supply senses the voltage
of the power in your area and automatically adjusts its
internal circuits for that voltage, producing the proper
internal working voltages regardless of external voltage
applied. An automatic ranging power supply therefore
does not require an external voltage selector switch or
need an external fuse.
For recovering data in an emergency situation,
important information on a hard disk drive is copied
to another disk or tape medium. This copy is called a
backup copy.
Glossary-1
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