9 Dec
2016
9 Dec
'16
12:39 p.m.
On Fri, Dec 9, 2016 at 3:07 PM, Paul Koning <paulkoning at comcast.net> wrote:
compatible
Just like any older / newer computer that is in principle compatible, but
practically not really.
On Dec 9, 2016, at 2:56 PM, william degnan
<billdegnan at gmail.com> wrote:
On Fri, Dec 9, 2016 at 1:40 PM, Paul Koning <paulkoning at comcast.net>
wrote:
>
>> On Dec 9, 2016, at 1:22 PM, william degnan <billdegnan at gmail.com>
wrote:
>>
>> IBM System/360 Model 44 Pamphlet from Nov 1968
>>
>> http://www.vintagecomputer.net/browse_thread.cfm?id=659
>
> Nice. The caption is odd; it claims that "... instruction set was
> compatible with the /30 through /91 models" when the pamphlet itself
makes
> it quite clear that this is not so (no SS
instructions).
>
> It's curious that the emulation feature, which adds software emulation
of
those
instructions, isn't mentioned, and in fact I haven't seen it
mentioned anywhere.
paul
Paul,
You're right, the brochure says only through the /75, my error. I fixed
the page.
I should have written programs written for the Model 44 will be with the System/360 Model 30 through 91, provided
the configurations are
comparable and the programs and not time dependent.
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.
paul