1204
I Assumed 'Twas The Boot Code (sh.itjust.works)
submitted 1 year ago by to c/programmer_humor@programming.dev
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[–] 23 points 1 year ago (9 children)

You might have meant it as a joke but just in case someone else isn't aware, this button actually made your CPU slower 🤓

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  • [–] 5 points 1 year ago (2 children)

    You might have meant it as a joke

    Yeah, I didn't think anyone would get the joke if I posted a picture of a 486DX with the J20 jumper set. You have to be a greybeard to remember that.

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  • [–] 9 points 1 year ago (5 children)

    Depends on the motherboard version. On later ones, the turbo actually worked to make your PC faster.

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  • [–] 22 points 1 year ago (4 children)

    As far as I understand, it's purely marketing semantics.

    The point of the 'Turbo' button is to slow the CPU down to provide compatibility with old software that was written with a fixed clockspeed, where the software would become unusably fast on newer CPUs.

    Calling this a "slow" mode or "compatibility" mode wasn't very marketing-sexy however, so manufacturers just flipped it around and called the normal speed 'Turbo'.

    With later systems, developers all became aware that varying CPU frequencies were a thing, and started to base their software timings on the realtime clock instead.

    So in later systems there was no longer any need to have the CPU run at anything other than its maximum (normal) speed - and the turbo button simply went away.

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  • [–] 1 point 1 year ago

    With later systems, developers all became aware that varying CPU frequencies were a thing, and started to base their software timings on the realtime clock instead.

    If only. Not sure how common it is nawadays - definitely still happening on occasion, but for example GTA: Vice City's physics get screwed up with uncapped framerate.

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