Oldest operational computer was Re: cctalk Digest, Vol 54, Issue 23

[der Mouse]

> Digital, electronic, stored program, Turing-complete.

That's slippery.  Strictly, no Turing-complete computer exists, nor can
(as far as we know), because any such machine would have to have
unbounded storage accessible.  How close counts?

Yes, I suspect I have a fair idea what you mean - I know what *I* would
mean by that.  But until we have a clear definition, we can't be sure.

As a strawman, I propose "would be Turing-complete with the addition of
a (hypothetical) Turing-tape peripheral supporting move-left,
move-right, read-current, and write-current operations".

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