17 Aug
2025
17 Aug
'25
1:25 a.m.
My favorite MIT 10 switch was something like “Split Sync Inhibit Enable Override”
Never saw it myself.
It had something to do with atomic instructions that required “split sync”.
On Aug 16, 2025, at 21:05, Larry McVoy
<lm(a)mcvoy.com> wrote:
On Sat, Aug 16, 2025 at 08:21:30PM -0400, Aron Insinga wrote:
The PDP-6 had a sign on it that said something
like "This machine
is old and flaky so don't touch it unless you know what you are doing."
Wasn't there a PDP-<something> at MIT, I think, that had a switch labeled
"magic" and "more magic" that had wires that went nowhere but it only
worked when set to "more magic"? I'm sure I have the details wrong but
I have a pretty strong memory of that. Anyone able to confirm?