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From: leech@alanine.cs.unc.edu (Jonathan Leech)
Newsgroups: comp.arch
Subject: Re: LEGOs -- computationally complete?
Keywords: physical Turing machines
Message-ID: <9903@thorin.cs.unc.edu>
Date: 9 Oct 89 23:42:24 GMT
References: <3300071@m.cs.uiuc.edu> <4792@orca.WV.TEK.COM>
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Reply-To: leech@alanine.cs.unc.edu (Jonathan Leech)
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In article <4792@orca.WV.TEK.COM> paulsc@radio_flyer.WV.TEK.COM (Paul Scherf) writes:
>While I was in college (a few years ago), a friend of mine and I were
>going to build a Turing machine.  We also tried to find articles on
>such things.

    Someone built a mechanical Turing machine at Caltech some years
ago (1960s, I think) which was still in use as of a few years ago, as
a demonstration device in the freshman digital logic class.  The tape
was ~40 characters long.
--
    Jon Leech (leech@cs.unc.edu)    __@/
    ``Before I refuse to take your questions, I have an opening statement.''
	- Ronald Reagan