Front panel switches - what did they do?

Jon Elson elson at
Tue May 24 22:48:14 CDT 2016

On 05/24/2016 09:29 PM, Chuck Guzis wrote:
> On 05/24/2016 07:05 PM, Jon Elson wrote:
>> 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!
> Yes, a neat little machine, not at all like the brain-dead model 20.
> Too bad that it came along much later--it would have been fun to fool with.
For sure!  The 360/30 was an 8 BIT machine, 8-bit memory, 
8-bit data paths, etc.  Really hobbled the performance, and 
restricted the peripherals that could be attached.  The 
models /22 and /25 had 16-bit memory and data paths.


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