Not necessarily. Even though PS/2 operates with a superior protocol, latency-wise, the clock speed is atrocious, resulting in an effective polling rate of about 1500hz, give or take. We could account that it doesn't need to wait for request to send keystrokes like USB keyboard do, effectively doubling it even more, but then we'd have to account for whatever delay Super I/O chips introduce and I'm not qualified to talk about that. But, if your keyboard is not from a dollar store shelf then it probably runs on at least 1000hz, at which point we are talking about sub-millisecond differences which would be quite hard to notice. 4000hz keyboard definitely beats PS/2 though.
drathvedro
joined 1 year ago
Nothing to do with the interface. If your keyboard can only do 4 it means that the manufacturer has cheaped out on diodes and couldn't even be bothered to stagger the matrix enough to make you not notice.
It's actually the other way around. Check out Ben Eater's awesome videos for technical details.
TLDR: PS/2 sends separate key up and key down events, sequentially - like #1 Down - #2 Down - #1 Up - #2 Up - each in separate message, allowing for theoretically infinite rollover (excluding certain edge-cases). USB, on the other hand, polls only for keys being pressed at the moment. By default, the keyboard responds with a 8-byte message, with 1 byte being the bitmask for 8 modifier keys (4 on each side), a spacer, and 6 bytes/slots for identifiers of keys being held down. If one identifier is present in one response but is missing or replaced in next one, the system assumes a key-up event. It is possible by USB spec to negotiate connection in such a way that the keyboard responds with a bitmask for every single key it has. But this is not well supported by things like BIOS and KVM's, so very few keyboard manufacturers bother implementing it. Most keyboarrds advertising NKRO are actually only capable of doing so via the PS/2 adapter.
And it's wrong, though. In Russia, we use space to separate thousands (with the exception of 4 digit numbers) - 1, 10, 100, 1000, 10 000, 100 000, 1 000 000 etc. People who care about formatting use a special thin space instead.
For decimal point, commas are used in bureaucratic environments because of some GOST or something, while normal people use dots, because windows calculator doesn't accept commas, and neither does Excel if I'm not mistaken. So it's kind of both on that front.
[Citation needed]
It's great to have alternatives. If it was all linux, and linux got hit, then it'd be the entire world in danger. Too bad M$ is just not good enough for it's second most popular position.
Second, even if we were to produce hydrogen from water, the cycle of electrolyzing, transporting and using hydrogen is associated with enormous energy losses, and we still have to get that extra energy from somewhere
Is it worse than hauling enormous batteries, though? I know hydrogen looses like half the energy on generation, but to me it sounds the same as if we do all-electric and spend the same amount of energy for just moving the batteries around. I'm too cooked atm, but is anyone up to do the research/math on this?
Nobody tell this guy about the state of modern physics.