Re: Thoughts on IBM 360

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From	rbowman <bowman@montana.com>
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Subject	Re: Thoughts on IBM 360
Date	3 Apr 2025 18:19:54 GMT
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On Thu, 3 Apr 2025 12:29:36 +0100, The Natural Philosopher wrote:

> "The 1967 IBM System/360 Model 91 could execute up to 16.6 million
> instructions per second. The larger 360 models could have up to 8 MB of
> main memory though that much memory was unusual; a large installation
> might have as little as 256 KB of main storage, but 512 KB, 768 KB or
> 1024 KB was more common. Up to 8 megabytes of slower (8 microsecond)
> Large Capacity Storage (LCS) was also available for some models. "

My introduction to programming was on a System/360 30.

https://en.wikipedia.org/wiki/IBM_System/360_Model_30

I can't remember if it had 32 or 64k but for operations like a FFT you 
wrote partial products to the tape drive, rewound, and took another pass. 
I was not impressed.

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Thoughts on IBM 360 The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 12:29 +0100
  Re: Thoughts on IBM 360 rbowman <bowman@montana.com> - 2025-04-03 18:19 +0000
  Re: Thoughts on IBM 360 Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-04-03 20:43 +0000
    Re: Thoughts on IBM 360 c186282 <c186282@nnada.net> - 2025-04-03 17:04 -0400
  Re: Thoughts on IBM 360 Woozy Song <suzyw0ng@outlook.com> - 2025-04-05 08:47 +0800
    Re: Thoughts on IBM 360 John McCue <jmccue@magnetar.jmcunx.com> - 2025-04-05 11:57 +0000

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