Author: Robert Hyatt
Date: 17:12:36 06/06/02
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On June 06, 2002 at 19:40:56, Roy Eassa wrote: >On June 06, 2002 at 18:06:27, Dan Andersson wrote: > >>I know you said that you were interested in current technologies. But the >>theoretical limit of a processor is a function of the fundamentals of physics. >>In the rough one can say that the maximum performance is dependant on the mass >>of the processor. The bigger the processor the larger the amout of computations >>that can be performed. But the speed of a sequential algorithm is bounded by the >>speed of light and therefore you have to increase the density of the matter. >>There you reach another limit, the black hole limit. Thus it is possible to give >>a limit to the computational power of mass per kilogram. Look for the papers of >>Seth Lloyd. If you limit yourself to current processes. It's a procedure of >>finding the mean critical path length in the processor. >> >>MvH Dan Andersson > > > >In any case, how many more years can we keep doubling speed every 1.5 - 2 years >before we run into the laws of physics? I can't imagine it's more than a few >decades more. I find it amazing that we have not already run into this. Clock frequencies above 2 gigahertz are way into the microwave range, and electrical properties of things change way up there... How electrons propagate. How atoms physically move around. Etc.
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