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A comment on Almost everything on computers is perceptually slower than it was in 1983. Parent comment

Re:Almost everything on computers is perceptually slower tha... by gugagore on Tuesday November 07, 2017 @01:28PM (#15646056)
on PCs, keyboards were never "serial" as in "the serial port"(mice were), but they were always "serial" in the same way that the USB port is "serial". Perhaps it's better said that the switch from a special-purpose interface to USB is what introduced lag.
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Re:Almost everything on computers is perceptually slower tha... by crankylinuxuser on Tuesday November 07, 2017 @02:16PM (#15646531)
I know on microcontrollers, if you want to reduce jitter (by sometimes up to a magnitude), you disable USB. Ive noticed my interrupt loops on ARMs go way down when the micro doesn't have to service USB.

But then you have to use an STLink to upload programs.

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