22 Aug
2022
22 Aug
'22
3:17 p.m.
On Mon, Aug 22, 2022 at 7:13 AM Paul Koning via cctalk <
cctalk(a)classiccmp.org> wrote:
I thought the initial 5.25" Hard Disks had ISSUES[tm] operating on edge. I
remember the RD50 (5MB in all its glory) being touted as also operating on
edge for the desk-side cases for DEC Rainbows and Professionals (and later
MircoPDP-11s).
Warner
On Aug 21, 2022, at 8:35 PM, W2HX via cctalk
<cctalk(a)classiccmp.org>
wrote:
I always thought it was interesting how 5 1/4 is 3U (rack units). I
thought there might have been some relationship to that. But could have
been just coincidence.
For floppies, likely yes. That fact did get used later on, in storage
arrays where you can line up 14 or so disk drives, standing on edge, in a
3U 19 inch rack mounted system.