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Article #620836

Re: Implementation of a Turing Machine?

#620836
From: JimP
Date: Wed, 21 Feb 2018 22:13
64 lines
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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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
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