Front panel switches - what did they do?

Jon Elson elson at
Tue May 24 21:05:46 CDT 2016

On 05/24/2016 02:13 PM, Chuck Guzis wrote:
> I seem to recall that reworking the 360/30 
> microprogramming was preferred by tinkerers over the 
> 360/40 was primarily that CROS was easier to work with 
> than TROS. I don't recall what the RCA Spectrolas used.
And the 360/25 had all writeable control store.  The control 
store was just the top 16 KB of main core memory!  To change 
emulators, restore from a microprogram crash, etc. you 
loaded the emulator from a card deck!


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