My computer is blowing heat, and all it's supposed to be doing is sending pulses of voltage through tiny circuits to flip and check the condition of FETs.
Ignoring the source of the electricity, I know that all of the conductive paths have some non-zero resistance, and so they generate heat as they carry current. Through engineering and material enhancement the resistance of conductors can be reduced. In fact, in the limit we can actually put the conductors into a state of superconductivity in which they literally have no resistance and so would generate no heat.
I understand that (at least in labs) the same has been shown for FETs.
So in the limit we can produce a computer with literally zero electrical resistance. Is this correct?
And if this is correct, then is it true that calculation and data storage and retrieval are in principle thermodynamically neutral? Or have I missed some "leak" in the process that requires an increase of entropy?