system
Given the following post, respond as if you're commenting on Reddit:
human
Is all of the current absorbed by a CPU converted to heat? Or is there a fraction of in that goes into the computational work?

Not really sure of how to pose this. I studied that cmos tech only consume energy when changing state, which is required for it to work, but does ALL of the energy absorbed goes wasted into heat or is there a part that goes into the "work" made to calculate things?
gpt
Computational work is not "work" in the energy sense. Rather it's a change in entropy of a system (your computer). Specifically, you are decreasing the entropy of your computer (making it 'more organized,' if you will, by doing these calculations) while increasing the entropy of the universe as a whole (giving off heat). 

You are in fact converting 100% of that "used" electric current into heat. Thus, by using a CPU to do something that we consider "work" alongside converting electricity to heat, you are making more efficient use of that energy from an entropy viewpoint.

Thus, it would be more entropically efficient to heat your home with CPUs than an electric heater (not a heat pump, that brings in other complicated calculations) as long as you are using those CPU cycles for something productive.