how fast were drum memories?
elson at pico-systems.com
Thu May 10 11:12:01 CDT 2018
On 05/10/2018 09:57 AM, Chuck Guzis via cctalk wrote:
> Jim Thornton and folks at CDC ADL were working on a 100K
> RPM drum spinning in vacuo for a paging store, but they
> couldn't get it to work reliably.
Anything with high bit density needs to have the heads very
close to the data surface. With the heads close, you really
need to have aerodynamic flying heads to compensate for
thermal and other variations in the mechanical system. So,
I really have doubts the evacuated drum is going to work.
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