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Article #620842Re: Implementation of a Turing Machine?
From: Joe Pfeiffer
Date: Wed, 21 Feb 2018 18:34
Date: Wed, 21 Feb 2018 18:34
29 lines
2787 bytes
2787 bytes
maus <ma...@mail.com> writes: > On 2018-02-20, Gene Wirchenko <ge...@telus.net> wrote: >> On Mon, 19 Feb 2018 09:11:12 +0000, Gareth's Downstairs Computer >><headstone255.but.n...@yahoo.com> wrote: >> >>>On 19/02/2018 07:26, Gene Wirchenko wrote: >> >>>Not enough description of the state machine, though, for >>>each state need to know action if 1 or 0 read, whether to >>>write back 1 or 0, and next state whether 1 or 0 read. >>> >>>It is particularly fascinating that a Turing Machine could >>>have been built with the technology available at the time >>>it was first postualted (1935?) >> >> I do not think that that is that notable. The machine could have >> been made back in Babbage's time. (Too bad Babbage did not come up >> with something more immediately practical.) >> >> Sincerely, >> >> Gene Wirchenko > > AFAIhaveread, the problem was that it not possible to machine parts to > the limits that Babbage's machines needed, at that time. No, it's been pretty well established they could have been. The problem was that he never froze his design.
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X-Received: by 10.55.76.205 with SMTP id z196mr2922866qka.20.1519238101529; Wed, 21 Feb 2018 10:35:01 -0800 (PST) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 10.237.47.196 with SMTP id m62ls1132748qtd.7.gmail; Wed, 21 Feb 2018 10:34:59 -0800 (PST) X-Received: by 10.200.81.215 with SMTP id d23mr3098807qtn.31.1519238099816; Wed, 21 Feb 2018 10:34:59 -0800 (PST) Path: mbox-mo1.pugleaf.net!m4ni36qte.0!nntp.google.com!peer03.iad!feed-me.highwinds-media.com!peer01.fr7!futter-mich.highwinds-media.com!peer03.am4!peer.am4.highwinds-media.com!news.highwinds-media.com!news.unit0.net!eternal-september.org!feeder.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Joe Pfeiffer <pfei...@cs.nmsu.edu> Newsgroups: alt.folklore.computers Subject: Re: Implementation of a Turing Machine? Date: Wed, 21 Feb 2018 11:34:59 -0700 Organization: A noiseless patient Spider Lines: 29 Message-ID: <1ba7w25gz0.fsf@pfeifferfamily.net> References: <p6d0na$o5g$1@dont-email.me> <c0vk8dl5m89kives0l6qto4p2dtjp6m5s7@4ax.com> <p6e4bt$s3q$1@dont-email.me> <bd9n8d915oumbif39ii719fgsqfgng3n7l@4ax.com> <slrnp8ql3h.46d.mausg@deb.xxx> Mime-Version: 1.0 Injection-Info: reader02.eternal-september.org; posting-host="82db8e2df9026dc091dc446f4c581e8a"; logging-data="20244"; mail-complaints-to="ab...@eternal-september.org"; posting-account="U2FsdGVkX1+X0OMHY3qTRF9QnvXOzB9XNdGFT2ggAOs=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) Cancel-Lock: sha1:sWL/0IKV33dkQdxAn1RXc6jo9Gc= sha1:LVZNAt/FowfX1R+KY2hrFhvpYJM= X-Received-Body-CRC: 3832958322 X-Received-Bytes: 2302 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit