Article View: alt.folklore.computers
Article #620838Re: Implementation of a Turing Machine?
From: jmfbahciv
Date: Thu, 22 Feb 2018 13:37
Date: Thu, 22 Feb 2018 13:37
50 lines
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3655 bytes
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
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X-Received: by 10.223.157.196 with SMTP id q4mr660973wre.23.1519307165117; Thu, 22 Feb 2018 05:46:05 -0800 (PST) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 10.28.47.71 with SMTP id v68ls854635wmv.6.gmail; Thu, 22 Feb 2018 05:46:03 -0800 (PST) X-Received: by 10.28.150.137 with SMTP id y131mr553073wmd.6.1519307163872; Thu, 22 Feb 2018 05:46:03 -0800 (PST) X-FeedAbuse: http://nntpfeed.proxad.net/abuse.pl feeded by 78.192.65.63 Path: mbox-mo1.pugleaf.net!130ni6591wmv.0!nntp.google.com!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!nntpfeed.proxad.net!news.muarf.org!news.roellig-ltd.de!open-news-network.org!feeder.erje.net!1.eu.feeder.erje.net!news.unit0.net!peer03.am4!peer.am4.highwinds-media.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!spln!extra.newsguy.com!newsp.newsguy.com!news7 From: jmfbahciv <See....@aol.com> Newsgroups: alt.folklore.computers Subject: Re: Implementation of a Turing Machine? Date: 22 Feb 2018 13:37:29 GMT Organization: "Have EDDT, will travel" Lines: 50 Message-ID: <PM000565CD831FAC52@aca40a3b.ipt.aol.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> NNTP-Posting-Host: pf414eb586377651664a57bd075370f95d0e7850559c0d22a.newsdawg.com Mime-Version: 1.0 User-Agent: Pineapple News/0.9.0 (Mac OS X 10.4.9 PowerPC) X-Registered-To: [Registered Name] X-Program-URL: http://www.platinumball.net/pineapple/news/macosx/ X-Received-Bytes: 2904 X-Received-Body-CRC: 512873247 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit