4 ms·
In the case of computers it turns to waste heat and whatever is radiated away is not usable energy and is essentially waste heat. Computers are basically device
by ainoobler 2y ago
In the case of computers it turns to waste heat and whatever is radiated away is not usable energy and is essentially waste heat. Computers are basically devices for converting useful energy into waste radiation.
- tsimionescu 2y agoAgreed, in computers all of the input power becomes waste heat. One small exception may be microntollers that use PWM to emit a signal through an antenna, or to drive a motor. I think in that case some of the energy becomes radio waves (which may never be absorbed entirely so they may not become heat) or motion in the motor.
- thenobsta 2y ago'Useful' signal also comes out in the form of photons from the monitor.
- tsimionescu 2y agoMonitors have an external power source, I have never heard of a monitor being powered by signal coming from the CPU or GPU. That is, the control signal coming from the CPU/GPU doesn't become light, it merely helps decide what light a separate circuit might emit.
- deleted 2y ago[deleted]
- ainoobler 2y agoThat's still radiation which turns to heat.