26 Mar
2002
26 Mar
'02
11:48 p.m.
At 09:53 PM 3/26/02 EST, Paxton wrote:
In a message dated 3/26/02 5:47:58 PM Pacific Standard
Time,
ernestls(a)attbi.com writes:
What size floppy disks does the HP 9114B drive use? Is it 720k or 1.44 meg?
To quote the 1988 HP Catalog "the HP9114B provides up to 710 Kbytes of
formatted capacity in a lightweight, battery-operated package. The 3.5"
disk drive reads, writes and initializes double-sided media in both
single-sided and double-sided formats.
SOME of HP 3.5" drives would support high density 1.44mb disk but the 9114 would
not. In fact, I haven't been able to get the 9114 to work at all with any 1.44Mb
disks. They might work if they were bulk erased first, I haven't tried that. But
standard 720k disks work fine in them. I've found the same to be true in the 9121 and
several other HP 3.5" drives. In fact, IIRC the 9122 C (emphasize C) is the only
drive that I'll found that will use the 1.44mb disks.
The capacity of the disk is dependent on the machine it's being used with and what
optional parameters that you give the Format (or Initialize) command. It's generally
about 710k but on the HP-41 it's only about 270k due to the small size of the 41
memory and limited disk DIR, FAT (actually LIF) and other disk info that the 41 can hold.
Joe