3 ms·
Of course! The crazy thing is that you could do it while the computer was running and it was mostly fine: DOS and many DOS games would just happily keep workin
by TacticalCoder 5y ago
Of course! The crazy thing is that you could do it while the computer was running and it was mostly fine: DOS and many DOS games would just happily keep working, just at slighly different speeds. But then it wasn't uncommon for the PC to just freeze and then it needed a reboot.
But the best feature, to me, was those PC with a turbo button that also had a seven-segment display showing the current speed. This was looking really cool.
- bestouff 5y agoI distinctly rememver taking one apart and being very disappointed: the segment display was completely fake and showed 2 predefined numbers, not correlated to the CPU frequency at all.
- jblazevic 5y agoUnless you set them correctly to actual CPU frequencies, in which case they correlated perfectly.
- Tagbert 5y agoWe added a variable frequency control to an IBM/AT and used it to adjust the CPU clock up to the point just below where the system would crash. Default was 6 MHz but we could push it up to around 10 MHz before it started crashing. That seemed amazingly fast at the time.