HP 250 - Page 154

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Volume Specifiers
This appendix describes the physical unit specifiers which are
used to tell your HP 250 the device you wish to access.
In Chapter 8, you saw how several commands associated with files
(such as CAT and PURGE) were used. You had to specify either the
volume label (the name assigned to a storage medium via the PRINT
LABEL command) or the physical unit specifier.
The physical unit specifier consists of several parameters to be
specified in this order (optional parameters are enclosed in
brackets). The physical unit specifier is always preceded by a
colon.
:device type [select code [,device address [,unit code]
The various device types are:
Device
Flexible Disc Drive
7906 Removable Disc
7906 Fixed Disc
7910 Fixed Disc
Cartridge Tape Drive
7908 Fixed Disc
7911 Fixed Disc
7912 Fixed Disc
5 Mb. Disc
Rev. 1/82
Letter
F
C
D
L
K
Q
R
s
G
C-l
------ c _____
Volume Specifiers
This appendix describes the physical unit specifiers which are
used to tell your HP 250 the device you wish to access.
In Chapter 8, you saw how several commands associated with files
(such as CAT and PURGE) were used. You had to specify either the
volume label (the name assigned to a storage medium via the PRINT
LABEL command) or the physical unit specifier.
The physical unit specifier consists of several parameters to be
specified in this order (optional parameters are enclosed in
brackets). The physical unit specifier is always preceded by a
colon.
:device type [select code [,device address [,unit code]
The various device types are:
Device
Flexible Disc Drive
7906 Removable Disc
7906 Fixed Disc
7910 Fixed Disc
Cartridge Tape Drive
7908 Fixed Disc
7911 Fixed Disc
7912 Fixed Disc
5 Mb. Disc
Rev. 1/82
Letter
F
C
D
L
K
Q
R
s
G
C-l