Originally posted by GilesGuthrie
It's because when you switch the equipment on, there are moving parts, like hard drives etc, that establish a point at which they're happy - think of it as a rhythm. Once at that point they can run indefinitely. If a hard drive is running but idle, it's better for it to remain in that state rather than to stop, and then have to start again.
With electronics, as you switch them on and off again, there can be surges in the voltage that can cause the chips and circuits to trip out of their usual operating environment, and that is bad. This is why 80% of PC warranty claims are in the first 30 days. Plus there's the whole temperature thing again.
You should always switch your monitor off though, but your PC should be able to do that for you.
Sorry Tatinee.
