Article View: alt.folklore.computers
Article #620836Re: Implementation of a Turing Machine?
From: JimP
Date: Wed, 21 Feb 2018 22:13
Date: Wed, 21 Feb 2018 22:13
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3625 bytes
On 21 Feb 2018 21:02:43 GMT, maus <ma...@mail.com> wrote: >On 2018-02-21, JimP <solo...@gmail.com> 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. > >CITE:? > >What was it for? I had no idea anyone in here didn't know what the anikythera mechanism was. http://antikythera-mechanism.gr/ http://www.antikythera-mechanism.com/ https://www.smithsonianmag.com/history/decoding-antikythera-mechanism-first-computer-180953979/ https://www.livescience.com/1166-scientists-unravel-mystery-ancient-greek-machine.html And likely at least 50 more.
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X-Received: by 10.28.10.65 with SMTP id 62mr419303wmk.30.1519251237812; Wed, 21 Feb 2018 14:13:57 -0800 (PST) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 10.223.156.206 with SMTP id h14ls691885wre.13.gmail; Wed, 21 Feb 2018 14:13:56 -0800 (PST) X-Received: by 10.223.128.194 with SMTP id 60mr433097wrl.27.1519251236550; Wed, 21 Feb 2018 14:13:56 -0800 (PST) Path: mbox-mo1.pugleaf.net!130ni769wmv.0!nntp.google.com!goblin1!goblin2!goblin.stu.neva.ru!nntp.comgw.net!peer02.am4!peer.am4.highwinds-media.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!spln!extra.newsguy.com!newsp.newsguy.com!news2 From: JimP <solo...@gmail.com> Newsgroups: alt.folklore.computers Subject: Re: Implementation of a Turing Machine? Date: Wed, 21 Feb 2018 16:13:04 -0600 Organization: NewsGuy.com Lines: 64 Message-ID: <kjrr8dhv1po68acrvs13dr2ooepk831fce@4ax.com> References: <55cr8dd6kn7hl2b5dat7s74o13beb2946v@4ax.com> <201802211011054696-mlevinespmfltr@redshift.com> <qsdr8d92ofeqom41pd79lc4cdvovl3ffq4@4ax.com> <slrnp8rnjj.6c7.mausg@deb.xxx> NNTP-Posting-Host: p5055cd12ccf54dba7771774746bb0dbb7354db385b727aa4.newsdawg.com Mime-Version: 1.0 User-Agent: ForteAgent/8.00.32.1272 X-Received-Body-CRC: 4146896172 X-Received-Bytes: 3137 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit