[TUHS] RIP John Backus
Paul McJones
paul at mcjones.org
Sun Mar 18 03:49:31 AEST 2018
On 3/17/2018 8:54 AM, Dave Horsfall <dave at horsfall.org> wrote:
> ... Was it the 704, or the 709? I recall that the
> array indexing order mapped directly into its index register or something
> ...
It first ran on the IBM 704, whose index registers subtracted (as did
the follow-on 709, 7090, etc), so array indexing went from higher memory
addresses to lower.
> The bookshelf: I had most of those books once; what's the one on the
> bottom right? It has a "paperback" look about it, but I can't quite make
> it out because of the reflection on the spine.
I'm not sure, and things have shifted since then on the shelves, but I
sent the original photo to your email address.
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