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Computers and energy

One of the reasons that per-capita energy use has exploded in recent years is due to the use of computers.  Since getting rid of computers probably won't be an option any time soon, we will need to make them more efficient.  Fortunately, we have technology on our side.  Replacing computers with less expensive and higher performing units is not only possible, but will be cost effective even many years from now.

Prospects for some type of Internet continuing well into peak oil are in my opinion pretty good.  Phone
lines are to this day still powered by DC backed up by banks of batteries.  If the wires still exist, there
will still be limited communication at least in core phone routes.  Most of this wiring is rather low power
so most of it could be powered by solar cells. (on some remote utility poles, you can see panels already
being used). 

However, there will be changes.  Instead of a computer on every desk, we will probably go back to the "computing center" model where central computers would be in high value locations such as libraries, universities and of course the military.  Servers will still transfer data - but might only do so during selected hours of operation rather than a 24/7 model that we use now.  Messages destined for a computer that is turned off will simply be queued up then delivered when service resumes.  (already, email systems do this for computers undergoing maintenance) 

As we go really deep into post-peak oil, it's very likely that the home PC and possibly home telephone service may become a thing of the past.  Assuming civilization survives, we may evolve into more of a western-union type of model for long distance communication.  However, instead of Morse code, we'll use computing stations and perhaps digital imaging delivered by traditional wire, cellular, WiFi type systems and perhaps even free space optics.

But that is years in the future.  This section of the site is concerned about what can be done for the next 10,20 and 30 years to justify the existence of computing in a post-peak-oil world.
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About the author: 
The author of this page is William McCracken - a disclaimer for this site can be found HERE