5 Replies - 4569 Views - Last Post: 21 January 2012 - 11:12 PM

#1 creativecoding  Icon User is offline

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Has anyone ever estimated how small a computer can be?

Posted 20 January 2012 - 10:37 PM

There's gotta be a limit as we are pushing towards smaller and smaller machines. First there were computers the size of rooms, and now we have computers the size of the hands. How small can they get until they reach the point where it is physically impossible to be any smaller?
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Replies To: Has anyone ever estimated how small a computer can be?

#2 Martyr2  Icon User is offline

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Re: Has anyone ever estimated how small a computer can be?

Posted 21 January 2012 - 02:04 AM

Here is something you can check out....

World's Smallest Computer Created - MSNBC

In theory you are limited by the actual architecture of the silicon chip. However, we are no experimenting with new materials such as the Graphene chip which can hold circuits that are one atom thick.

Enjoy! :)
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#3 creativecoding  Icon User is offline

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Re: Has anyone ever estimated how small a computer can be?

Posted 21 January 2012 - 03:24 PM

That's pretty cool. Thanks.
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#4 htc(hot-taco-cheese)  Icon User is offline

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Re: Has anyone ever estimated how small a computer can be?

Posted 21 January 2012 - 04:14 PM

I saw on Reddit that IBM made one bit of memory out of twelve atoms. I don't follow this stuff too closely so I don't know how recent that is
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#5 ishkabible  Icon User is offline

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Re: Has anyone ever estimated how small a computer can be?

Posted 21 January 2012 - 11:00 PM

it also depends on what you consider a computer. for instance, wolfram discovered a 2-5 Turing machine and suggested that a another 2-3 Turing machine might be universal too. then comes the definition of what amount of output and input it has to handle before it can be considered a computer. a bit? a byte? maybe even kilobyte(I would be happy with less)?

if you can find atomic behavior that mirrors a 2-5 or 2-3 truing machine and you just give it a then very very small(a smallish number of atoms or maybe even elementary partials * 8 for a byte)

so i think a computer could be rather ridiculously small.

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I saw on Reddit that IBM made one bit of memory out of twelve atoms


saw that just the other day too! it's part of the reason I say this; say 8*12 for memory plus 100-200 atoms for the head of the turning machine. that would be unbelievably small!! maybe that's overly optimistic though

This post has been edited by ishkabible: 21 January 2012 - 11:04 PM

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#6 no2pencil  Icon User is offline

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Re: Has anyone ever estimated how small a computer can be?

Posted 21 January 2012 - 11:12 PM

this has got to be my favorite custom small computer.
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