Out of curiosity, Baby Thork, from what university did you get your degree? What engineering is it in? Software? Certainly not electrical.
You must certainly understand the conservation of energy, do you? There's nowhere in a computer that can store the energy that gets put in (say, 30A @ 12V = 360W = 360J/s). So it has to be released as heat. Even the vibrations and fan movement get converted to heat (otherwise the fans would move faster and the vibrations would get bigger over time).
Landauer's principle deals with entropy and how energy must be converted to heat to manipulate information. It also deals with energy amounts far smaller than are relevant.
I can also show you a CPU that downclocks from ~20 MHz to 1 Hz when I set it to do that. Just get me an FPGA and I'll program one in for you. No virtual memory, minimal I/O, no exceptions, and no context switching.
Now, as for your assertion that 1 joule of electricity is not equal to 1 joule of heat. This is false. There is nowhere in the computer that will store this joule. Any computer that didn't produce 1 joule of heat from the 1 joule of electricity would simply accumulate energy. Do you mean to tell me my laptop is a bomb? There is a set amount of energy that any computer can store before it must convert the rest to heat (or simply just draw less).
Of course, if I charge my phone from my computer, then obviously 1 watt of electricity in does not produce 1 watt of heat. But that's nitpicking and not touching on the fundamental misunderstanding you have of ... physics.