Model 40 Re: IBM 360 Model 50 information?

Jon Elson elson at
Tue Apr 2 10:02:50 CDT 2019

On 04/01/2019 09:45 PM, Bill Degnan via cctalk wrote:
> can you show me an example?
I think this may actually be a section of the "ALD"s for a 
model /50:

And, this one has pretty detailed info on the microcode 
flow, listing of operations, etc.
(This may be what the OP was already working with.)

This whole area of bitsavers is well hidden, but has a 
wealth of hardware information:


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