HP 250 Operating page 155

Physical Unit Specifiers
select code can be an integer from 1 through 15. It is
not required. The HP 250 system automatically
sets it to 2. (optional)
device address can be an integer expression from 0 through 7.
Device Address
o
1
2
3
4
5
6
7
Disc
printer
printer
optional
optional
Integrated Storage Unit
7906 (C/D)
Flexible Disc
7910 or 5 Mb. Disc
C-2
unit code can be an integer expression from 0 through
7. For an Integrated Storage Unit (HP 7908,
7911, or 7912 disc plus cartridge tape drive),
the disc unit code is always 0 and the tape
unit code 1. (optional)
Rev. 1/82
Physical Unit Specifiers
select code can be an integer from 1 through 15. It is
not required. The HP 250 system automatically
sets it to 2. (optional)
device address can be an integer expression from 0 through 7.
Device Address
o
1
2
3
4
5
6
7
Disc
printer
printer
optional
optional
Integrated Storage Unit
7906 (C/D)
Flexible Disc
7910 or 5 Mb. Disc
C-2
unit code can be an integer expression from 0 through
7. For an Integrated Storage Unit (HP 7908,
7911, or 7912 disc plus cartridge tape drive),
the disc unit code is always 0 and the tape
unit code 1. (optional)
Rev. 1/82