A bunch of those points about ps2 are no longer accurate, it's emulated on modern computers.

Yeah but try pressing more than 4 keys at once on the PS2 keyboard and get back to me

USB: Many designs and revisions, none of them perfect

Nah, USB 3.2 Gen 2x2 SuperSpeed is the best! And it took me only 30 minutes of reading articles and wiki pages to get that information! ^although^ ^I’m^ ^not^ ^sure^ ^what^ ^USB4^ ^Gen^ ^3×1^ ^is,^ ^but^ ^it’s^ ^only^ ^x1^ ^so^ ^can’t^ ^be^ ^that^ ^good,^ ^right?^

I know this is a shitpost, but what's interesting is that even though USB doesn't directly interrupt the CPU it's still faster. USB is able to get the entire packet sent before PS2 even sends one. It's very interesting. So if you ever see anyone unironically saying there is less latency call them out!

Are PS/2 ports still operating on hardware interrupts these days? I would expect these to be emulated as USB devices at this point, depending on whatever I/O chipset is in play.

The bit about USB asking the CPU is kinda true? My understanding is that it's a packet protocol of sorts, so it's really just writing post-it notes for each button press and leaves them on the CPU's whiteboard for later.

Love it