Article View: alt.folklore.computers
Article #620839Re: Implementation of a Turing Machine?
From: JimP
Date: Fri, 23 Feb 2018 02:14
Date: Fri, 23 Feb 2018 02:14
55 lines
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3551 bytes
On 22 Feb 2018 13:37:29 GMT, jmfbahciv <See....@aol.com> wrote: >JimP wrote: >> On Wed, 21 Feb 2018 10:11:05 -0800, Michael LeVine >> <mlevine...@redshift.com> wrote: >> >>>On 2018-02-21 17:48:34 +0000, Gene Wirchenko said: >>> >>>> On 21 Feb 2018 11:13:54 GMT, maus <ma...@mail.com> wrote: >>>> >>>>> 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.) >>>> >>>>> AFAIhaveread, the problem was that it not possible to machine parts to >>>>> the limits that Babbage's machines needed, at that time. >>>> >>>> I was thinking of that plus that Babbage did not get something >>>> practical going. That might have helped get mechanical computing >>>> going big. >>>> >>>> Sincerely, >>>> >>>> Gene Wirchenko >>> >>>His difference engine was built tothe same tolerance's that were >>>available in his time, >>>and it worked as designed. >>>https://www.youtube.com/watch?v=be1EM3gQkAY >>>https://www.youtube.com/watch?v=BlbQsKpq3Ak >> >> The antikythera mechanism was built to very tight tolerances and >> worked. > >I didn't know that someone actuallly figured out how to make one. >Nice PhD project :-) > >/BAH There was a PhD in England who would make one, for $4,000. Shipping not included.
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X-Received: by 10.223.131.38 with SMTP id 35mr2305wrd.4.1519352088417; Thu, 22 Feb 2018 18:14:48 -0800 (PST) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 10.223.163.205 with SMTP id m13ls1543771wrb.0.gmail; Thu, 22 Feb 2018 18:14:47 -0800 (PST) X-Received: by 10.223.187.6 with SMTP id r6mr1791wrg.9.1519352087444; Thu, 22 Feb 2018 18:14:47 -0800 (PST) Path: mbox-mo1.pugleaf.net!n14ni7426wmi.0!nntp.google.com!goblin2!goblin.stu.neva.ru!news.unit0.net!peer01.am4!peer.am4.highwinds-media.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!spln!extra.newsguy.com!newsp.newsguy.com!news1 From: JimP <solo...@gmail.com> Newsgroups: alt.folklore.computers Subject: Re: Implementation of a Turing Machine? Date: Thu, 22 Feb 2018 20:14:16 -0600 Organization: NewsGuy.com Lines: 55 Message-ID: <q6uu8ddpt6fqlle4e5ga2hitnlsl3ussj2@4ax.com> References: <55cr8dd6kn7hl2b5dat7s74o13beb2946v@4ax.com> <201802211011054696-mlevinespmfltr@redshift.com> <55cr8dd6kn7hl2b5dat7s74o13beb2946v@4ax.com> <201802211011054696-mlevinespmfltr@redshift.com> <55cr8dd6kn7hl2b5dat7s74o13beb2946v@4ax.com> <201802211011054696-mlevinespmfltr@redshift.com> <qsdr8d92ofeqom41pd79lc4cdvovl3ffq4@4ax.com> <PM000565CD831FAC52@aca40a3b.ipt.aol.com> NNTP-Posting-Host: pfa448312cb6a48455f596f3f1506e8abf0cb5a32bf3b4f61.newsdawg.com Mime-Version: 1.0 User-Agent: ForteAgent/8.00.32.1272 X-Received-Body-CRC: 1096191794 X-Received-Bytes: 3076 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit