I tripped across this 'Carputer' power supply on e*bay:
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Or e*bay item 130210549212
Carputer?? Groan... I thought the seller was just making up new words. (Carputer is not even on my spellcheck.) But checked wiki...
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Neato... All I have to do is duct tape (Red Green style) my desktop computer to the inside of my car and I have a carputer. :)
D from BC British Columbia Canada