1 Oct
2024
1 Oct
'24
3:11 p.m.
On Oct 1, 2024, at 10:54 AM, Jon Elson via cctalk
<cctalk(a)classiccmp.org> wrote:
I haven't met a 2314, but I did see 2311 drives on a 360/44 and 1311 drives on a 1620.
The 1311 is definitely hydraulic -- I learned that when ours sprung a leak and sprayed
hydraulic fluid all over the system pack. It got fixed perfectly, though. So that drive
technology may be older than 1965.
paul
...
The IBM 2314 was REALLY low tech.
There was almost no electronics in the drives! They has a read amp, a write amp and a
hydraulic "stepper motor" with mechanical detents that moved the heads in
response to step in and step out pulses from the control unit.
IBM did know how to distill things down to the absolute minimum. Remember, this was
developed in the early 1960s and first shipped with the first 360's in 1965.