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You can't work by analogy on the whole of a field as diverse as software. - Sure you can - sorta | 756 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
Why is it not Turing complete?
Authored by: Anonymous on Friday, July 20 2012 @ 04:16 PM EDT

Other then the hardware limitations, perhaps you can explain why one could not change the software on a bottom-end-simple calculator to output some basic morse-code messages?

    Dit
    Dot
    space
Please explain why a four function device couldn't handle morse code.

As I said: the limitation isn't in the software, it's in the limitations of the hardware. Increase what the hardware is capable of and you can easily implement more functions to perform more tasks. Think about the heart of how computers work: binary. That's just two stages and with two stages - and lots of memory - we can encode any logical data processing you want done.

This should be considered conclusively proven when the AL1 chip was presented in a Courtroom demonstration. A chip not previously used as a computer.

Are you suggesting that the cpu in today's bottom-end-simple calculator is less capable then the AL1 chip?

Or perhaps you're suggesting the AL1 chip is not Turing complete? A couple quotes from the document to consider as you consider your answer:

Demonstration software selected for the model includes a data base program for entering, updating and searching customer records.
This model also demonstrates that the AL1 was capable of running software such as the WSTR program over 10 times faster than either the TMX 1795 or the 8008.
Perhaps the 8008 was also not Turing Complete?

RAS

[ Reply to This | Parent | # ]

You can't work by analogy on the whole of a field as diverse as software. - Sure you can - sorta
Authored by: Anonymous on Saturday, July 21 2012 @ 02:31 PM EDT
As long as you allow for the output of the 4-function calculator to feed its
input, it is Turing complete.

[ Reply to This | Parent | # ]

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