10 May
2018
10 May
'18
9:12 a.m.
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.
Jon