From mboxrd@z Thu Jan 1 00:00:00 1970 From: crossd@gmail.com (Dan Cross) Date: Fri, 20 Apr 2018 12:12:28 -0400 Subject: [TUHS] /dev/drum In-Reply-To: <25A1FED0-4F8B-408F-B27B-5728C649D8BE@collantes.us> References: <8225C5DB-27BD-464E-930A-522C30C20EBD@tfeb.org> <25A1FED0-4F8B-408F-B27B-5728C649D8BE@collantes.us> Message-ID: That's a bit different. It's possible that some early Unix machines had actual drum devices for storage or swap (did any of them?), but the /dev/drum device is what Clem says it was. It's funny, I just happened across this a couple of days ago when I went looking for the `hier.7` man page from 4.4BSD-Lite2: https://www.freebsd.org/cgi/man.cgi?query=hier&apropos=0&sektion=7&manpath=4.4BSD+Lite2&arch=default&format=html It refers to this: https://www.freebsd.org/cgi/man.cgi?query=drum&sektion=4&apropos=0&manpath=4.4BSD+Lite2 The claim is that it came from 3.0BSD. Why was it called drum? I imagine that's historical license coupled with grad student imagination, but I'm curious if it has origin in actual hardware used at UC Berkeley. Clem, that was roughly your era, was it not? - Dan C. On Fri, Apr 20, 2018 at 12:00 PM, David Collantes wrote: > I found a Wikipedia[0] entry for it. > > [0] https://en.m.wikipedia.org/wiki/Drum_memory > > > -- > David Collantes > +1-407-484-7171 > > On Apr 20, 2018, at 11:02, Tim Bradshaw wrote: > > I am sure I remember a machine which had this (which would have been > running a BSD 4.2 port). Is my memory right, and what was it for > (something related to swap?)? > > It is stupidly hard to search for (or, alternatively, there are just no > hits and the memory is false). > > --tim > > -------------- next part -------------- An HTML attachment was scrubbed... URL: