17 Apr
2024
17 Apr
'24
6:32 a.m.
Core memory yes - Drum memory I dont think so.
Rod Smallwood (Digital Equipment Corporation 1975 - 1985)
On 15/04/2024 08:06, Paul Flo Williams via cctalk wrote:
On Sat, 13 Apr 2024 17:26:31 -0400
Christopher Zach via cctalk <cctalk(a)classiccmp.org> wrote:
Was reading the Wikipedia article on Drum
memories:
https://en.wikipedia.org/wiki/Drum_memory#External_links
And came across this tidbit.
As late as 1980, PDP-11/45 machines using magnetic core main memory
and drums for swapping were still in use at many of the original UNIX
sites.
This uncited claim was introduced 15 years ago, along with the commit
comment "Hey, I saw drums (and core memory!) on PDP 11/45 hardware
running UNIX v6 (pre-BSD) in 1980 ... "
So, someone anonymous saw some once, somewhere, and promoted this to
"many sites."