OT good tutorial for computer buyer?

[Erik Hansen]

is there a good tutorial on the basics
of a computer as seen from the standpoint
of a computer purchaser?

questions like: 
what things can you easily update (or not)?
what requires 512 M, 1 G?
what are the different kinds of DVD (-,+)
are there different kinds of wireless?

what are the trade-offs?
what is the safest choice?

thanks,

Erik Hansen

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erik at erikhansen.org    http://www.erikhansen.org

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