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The HP 82900-Series 5ΒΌ-Inch Flexible Disc Drives have the following drive
numbers. (The drive numbers appear on the front panel of each unit.)
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HP 82902M Flexible Disc Drive (single master)
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DRIVE 0
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HP 82901M Flexible Disc Drive (dual master)
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DRIVE 0, DRIVE 1
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The HP 9895A 8-Inch Flexible Disc Drives have the following drive numbers.
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HP 9895A Option 010 (single disc)
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DRIVE 0
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HP 9895A (dual disc)
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DRIVE 0, DRIVE 1
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For information about drive numbers of other Hewlett-Packard disc drives, refer to the
instructions for those devices.
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The Mass Storage Unit Specifier (msus)
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The mass storage unit specifier (msus) is a character string that combines
the HP-IB select code, the address of the disc drive unit, and the drive number to specify
the location of a particular disc on which a file is located.
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The msus has the form:
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": device type [interface select code device address drive number] "
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All msus character strings begin with a colon (:).
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The device type identifies the type of mass storage device being accessed,
D or
d for disc.
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