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Questions tagged [ps2]

PS/2 is an older interface for connecting mice and keyboards to a PC. The connector is a 6-pin Mini-DIN and only fits one way.

95 questions
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How many port adapters, and which ones can be stacked up and actually work?

Someone posted this pic on twitter today: That won't work, right? Why, exactly? And, specifically, at which point the stack of adapters stops working?
Wes
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43
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4 answers

Do USB or PS/2 keyboards respond faster?

Do USB or PS/2 keyboards respond faster in terms of end-to-end input latency, keystrike to character appearing on the screen? Related: Under either connection, is the time between keystrike to character appearing long enough to be perceptible? Under…
Aidan Ryan
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6 answers

Is it safe to hot swap a PS/2 keyboard?

I've always powered down machine to change out PS/2 peripherals. Is it necessary?
user13743
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16 answers

Laptop's internal keyboard as an external one?

Firstly, let me say that I've never seen how a laptop's internal keyboard interface with the motherboard. Hence the question. The thing is I use an external keyboard and monitor, but I like how internal keyboards are, and I simply can't find a…
GetFree
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6 answers

Is there a distinct advantage that a PS2 port has over a serial/USB port?

Silly question perhaps ... I'm told that PS2 technology dates back to the early 1990's or thereabouts. By and large, motherboard manufacturers still support PS2 technology/ports instead of providing an additional couple of USB ports for keyboard and…
Everyone
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3 answers

Can any USB mouse or keyboard be connected to the PS/2 connector of a motherboard via USB-PS/2 adapter?

Is there a necessity for the mouse to know a different protocol or a different pinout to be able to be connected to a PS/2 port? Many vendors provide a USB-to-PS/2 adapter, but some don't. From what I know, PS2 and USB interfaces even have a…
yoyo_fun
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3 answers

Can I plug a keyboard into a PS2 port labeled for a mouse?

I have an old laptop with a PS2 port and it has a mouse symbol on it. Does this mean I can only plug a mouse into this port and will a keyboard work?
YAS
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5 answers

What is the end of this cable?

In the below image (from here), the "left" end (which I have labeled "A") is clearly two PS/2 ports. What is the "right" end (which I have labeled "B")? Does it connect directly to a motherboard? The above is apparently Lenovo part number…
Andrew
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Do PS2 Keyboards work on Windows 10

I was just told that PS2 Keyboards aren't compatible with windows 10. Is this true. I was under the impression that they should work fine?
unknownSPY
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10
votes
3 answers

USB ->PS2 -> USB ->thumb drive -> WTF?

I plug a USB to PS2 converter into my computer and then plug a PS2 to USB converter (different brand) into that and then plug a thumb drive into that... and the drive works. What the heck?! Is USB somehow electronically backwards compatible with…
BCS
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3 answers

Can I use my green (mouse) USB-to-PS/2 adapter for keyboards?

I have a USB keyboard which I want to connect over PS/2 to my computer. I only have a green USB-to-PS/2 adapter which has the symbol of a mouse on it. Can I use it for the USB keyboard anyways? My motherboard has a PS/2-combo-socket, e.g. it accepts…
Ray
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3 answers

How to Determine if USB mouse supports PS/2?

Without having the mouse in hand, is there any way if I can determine if a USB mouse (ie: http://dx.com/p/usb-2-0-wired-red-laser-3200-2400-1600-800dpi-gaming-mouse-black-225631#tabProInfo) supports conversion to a PS/2 interface? As in, will it…
Gerharddc
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2 answers

Caps lock key behavior on PS/2 keyboard is reversed

I'm on a Windows 7 desktop with an external ps2 keyboard and its Caps lock key is behaving in opposite manner, like when I turn on the caps lock and the caps lock key light is lit its typing in small alphabets and vice-versa. It works fine for a…
dShringi
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6 answers

Numlock on when computer is off

I have a desktop PC which was recently moved. Since moving I've noticed that even while the PC is turned off (but wall socket turned on) the NumLock LED on the keyboard is on. It may have been doing this before the move, but I've only noticed it…
George Duckett
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2 answers

Do built in keyboards use polling or interrupts?

I was reading this question which says that USB keyboards use polling to see if keys are being pressed whereas PS/2 keyboards use interrupts. I was wondering which method built in keyboards on a laptop use?
KNejad
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