Connect KeyBoard to Arduino without USB

Hello,
I opened an old PC (2001, Windows XP) and I found a working KeyBoard. How can I connect the KeyBoard to my Arduino (I've got UNO and DUE) without using USB.

On my KeyBoard there are 24 out going pin.

Sorry for my Bad English

24 pins?! So you’ve… ripped out all the electronics, so you’ve got the bare switch matrix? (look up switch matrix if you don’t know what that means).

The next step is to figure out how the matrix is wired, which wires are rows and which are columns. Whichever there are fewer of, drive each of those low in turn, while the other wires are input_pullup. Since you don’t have enough pins on the uno to do something like that, you’d need to use shift registers if doing it on the uno.

Do you think its possible to find some datasheets online?

Do you think its possible to find some datasheets online?

I'm going to guess that you have internet access. After all, you did post here. 8) If so, you could certainly try.

You are the one with the keyboard in hand. You are the ONLY one that can see if there is any information that would help narrow down the search. Googling keyboard is bound to produce a few hits.