metspitzer wrote:

Think about the $75 2-watt Norhtec 486 clone.

Nope.

OK. Don't think :-)

With only one hard drive, most (idle) computers are still under 150W.
I would say under 100W.

I'd say 2 watts max for the PC above.

Add about 15W per hard drive.

What hard drive?

It's about 4"x4"x2" tall, with no hard drive or keyboard or display, just
connectors, including 3 USB. We added Ubuntu linux with a 1-wire file
system (OWFS) on a $10 1 GB flash ram to handle a string of $2 Dallas
sensors that respond with a 12 bit temperature after they see their
factory-programmed 64-bit address go by on a single shared twisted pair.

The best part is Ubuntu's bwbasic, which is almost identical to gwbasic :-)

Nick