ekZepp@lemmy.world to Programmer Humor@programming.devEnglish · 1 month agoVintagelemmy.worldimagemessage-square313fedilinkarrow-up11.33Karrow-down117
arrow-up11.32Karrow-down1imageVintagelemmy.worldekZepp@lemmy.world to Programmer Humor@programming.devEnglish · 1 month agomessage-square313fedilink
minus-squarecheet@infosec.publinkfedilinkarrow-up44·1 month agoPS2 keyboards use interrupts rather than polling in USB, meaning every time a key is pressed the CPU stops what its doing to process it.
minus-squaremfed1122@discuss.tchncs.delinkfedilinkEnglisharrow-up6·1 month agoCool! I had no idea it was deeper than just a physical interface change.
minus-squaredrath@lemmy.worldlinkfedilinkarrow-up5·1 month agoI’m wondering, is it still the case for mobos with Super IO?
minus-squaredan@upvote.aulinkfedilinkarrow-up4·1 month agoSuper IO does still use interrupts as far as I know. The PS/2 protocol is interrupt-driven, so it’s not possible to use a PS/2 keyboard or mouse without interrupts.
minus-squareDeebster@infosec.publinkfedilinkarrow-up1·1 month agoAnd having to pick your IRQ when installing anything into your machine, and the weird bugs that could happen if you mucked it up.
minus-squareTaleya@aussie.zonelinkfedilinkEnglisharrow-up4·1 month agoI remember manually programming the cylinders and heads on a hdd into the bios. Kids these days got it easy
minus-squareDeebster@infosec.publinkfedilinkarrow-up1·1 month agoAnd when the bits feel off the end and you had to wind them back on with a pencil.
PS2 keyboards use interrupts rather than polling in USB, meaning every time a key is pressed the CPU stops what its doing to process it.
Cool! I had no idea it was deeper than just a physical interface change.
I’m wondering, is it still the case for mobos with Super IO?
Super IO does still use interrupts as far as I know. The PS/2 protocol is interrupt-driven, so it’s not possible to use a PS/2 keyboard or mouse without interrupts.
And having to pick your IRQ when installing anything into your machine, and the weird bugs that could happen if you mucked it up.
I remember manually programming the cylinders and heads on a hdd into the bios. Kids these days got it easy
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And when the bits feel off the end and you had to wind them back on with a pencil.