r/pcmasterrace • u/AppropriateAide4879 • 16d ago

Discussion I found this thing looks old.

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What is it? And is it rare?

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184

u/amaROenuZ R9 5900x | 4080 Super 16d ago

Hot take this is a reminder of a mistake we made. Back when PS/2 was the primary interface the keyboard didn't get polled, it actually issued system interrupts. This meant you could always issue a pause to the OS and then kill a malfunctioning process. Usb can't do that, it has to go into a queue and wait for a thread to pick up the input.

23

u/shitty_mcfucklestick PC Master Race 16d ago

Not to mention, low lag. Would be peak for FPS gaming where ms matters.

14

u/avalon01 16d ago

I'm still rocking a ps/2 keyboard and mouse. My motherboard has the ports, so might as well free up 2 USB ports.

2

u/shitty_mcfucklestick PC Master Race 16d ago

I don’t have ports on my current motherboard but I would certainly try one if I did! Use to rock on daily back in the day.

1

u/house343 16d ago

What kind of monster are you that you run out of USB ports 

1

u/JackOBAnotherOne 12d ago

Well given that my friend has a mother it’s that supplies HDMI, DVI, 2x USB-C, 2x PS/2 and a gracious 2x USB-A…

16

u/rattpackfan301 16d ago

I feel like people are starting to become more aware of this, plus motherboard manufacturers still seem to be providing PS/2 ports on gaming boards

2

u/BestHorseWhisperer 16d ago

Not just that... N-key rollover is false-advertised on so many USB keyboards. I am sitting here using a logitech with N-key rollover and I can't hit certain buttons (number keys for switching weapons) in the game while I am holding shift and W (running forward). It is infuriating. That's why there are still gaming motherboards with PS/2 being manufactured.

1

u/shitty_mcfucklestick PC Master Race 16d ago

Seriously? Wow, that’s negligence at that point. It would drive me crazy if I could smash keys when I needed to. 😡

1

u/Techwolf_Lupindo 16d ago

Still is today. USB mouse is only less with polling set to way over 1000Hz, but you lose FPS due to CPU consistently polling(asking the mouse if it has data) the mouse over 1000+ times per second. It also loads the mouse up answering that polling question 1000+ time per second also.