Quantum L200 Betriebsanweisung Seite 104

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Glossary
88 Quantum|ATL PowerStor L200 Series Library Users Guide
Bit The basic unit of information in a binary numbering system
(binary digit) representing either 1 or 0. Eight bits make up each
byte.
BOT Beginning of tape.
Bus A communication channel carrying signals from any device
used by the computer or library to another device. For example,
data being transferred from the computer to the library travels on a
bus.
Byte The basic unit of computer memory, large enough to hold
one character. A byte is composed of eight bits.
C
cartridge
A case containing a supply reel with magnetic tape used
as media for reading and writing computer data.
CHM Cartridge handling mechanism. A compact, bi-directional
roller system that enables simple horizontal movement between
the magazine and DLT drive.
command A user-initiated signal given to a computer program
that initiates, terminates, or otherwise controls the execution of a
specific operation. In a menu-driven system such as the library
control panel, you choose commands by pressing on-screen
buttons.
control panel The panel on the front of the library which provides
screens with buttons, indicators and report screens, used to control
the functions and settings of the library.
D
DLT
Digital linear tapeA high-grade, metal-particle magnetic
tape medium. DLT technology is the intellectual property of
Quantum Corporation.
E
EIA/TIA-574
A serial communications cabling and protocol
standard for 9-pin connectors, sometimes referred to as RS-232.
The diagnostic port (
DIAG), on the rear of the library, uses this
protocol.
EOT End of tape.
Seitenansicht 103

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