IBM System/360 Model 44 Pamphlet

[Paul Koning]

> On Dec 9, 2016, at 3:39 PM, william degnan <billdegnan at gmail.com> wrote:
> 
> On Fri, Dec 9, 2016 at 3:07 PM, Paul Koning <paulkoning at comcast.net> wrote:
> 
>> 
>>> ...
>> 
>> That's true, but the wording implies that the converse holds (360/75
>> programs will run on 360/44) which is usually not true.  "Compatible subset
>> of the ... models" would be clearer.
>> 
> Just like any older / newer computer that is in principle compatible, but
> practically not really.

Not quite.  In the case of the 360/44, it wasn't compatible in principle either, not even close and quite intentionally.

	paul