Back in the day, my family had a 486 with a turbo button on it. We used that computer lots! Any of you remember, or have played, the original Need For Speed? Now THAT was what I call gaming..
The turbo button didn't speed up the mouse. It was used to slow down the computer so you can run older apps that wouldnt run no the current PC's. The processor is set at a certain speed, the turbo button didnt overclock it, but when it was depressed it was a certain percentage lower.
On the 486s it would cause wait states to the processor and even disable the CPUs cache, later with the 386s it would just lower the CPUs MHZs by lowering the FSB by a few MHZs.
wow, i thought everyone would remember that. i had no idea so many people had never heard of such a thing. I think on the one i had bumped a 30 mhz processor way up to 33mhz.