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Turbo button
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== Purpose == With the introduction of CPUs which ran faster than the original 4.77 MHz [[Intel 8088]] used in the [[IBM Personal Computer]], programs which relied on the CPU's frequency for timing were executing faster than intended. Games in particular were often rendered unplayable, due to the reduced time allowed to react to the faster game events. To restore compatibility, the "turbo" button was added.<ref>{{Citation |last=VWestlife |title=The PC turbo button mystery finally solved! |date= 14 February 2023|url=https://www.youtube.com/watch?v=zpq9irl2yE4 |access-date=2023-03-31}}</ref> Disengaging turbo mode slows the system down to a state compatible with original [[Intel 8086|8086]]/[[Intel 8088|8088]] chips.
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