24 May
2016
24 May
'16
9:56 a.m.
On Tue, 24 May 2016, Jon Elson wrote:
The early PDP-11s had a diode matrix ROM for the boot
memory. You could
change the boot code with a wire cutter and soldering iron.
Is that similar to "wire wrap" ? I remember my grandmother talking about
having to snip wires connected to diodes. I think this was in the 50's but
it might have been the 60's, too. She mentioned something like that.
-Swift