Yep. Looks like a standard XT style keyboard and a serial mouse. This is normal for the original pentium class PC's and I have a couple of those here.
The keyboard should work fine. Are you booting straight into the gui? ( I assume so). When you get the lilo/grub screen do you have keyboard control? Can you hit escape and type linux 3 to boot into text mode linux (works with lilo anyway)
The mouse might not get detected as it's a serial mouse and they sometimes have to be set up manually, but the keyboard should be going - but hard to get it to do much if you are booting into gui mode unless you are used to the OS.
If you can get it to boot into the text mode and the keyboard works, then maybe you can edit the XConfig and set up the mouse.
Or perhaps reinstall and make see if you can set the mouse to serial during the install, tho you will need to know which serial port the mouse is on. THe PC's usually have two of them, tho the mouse is usually on the first one, which is sometimes called 0 (zero)... Confusing, and I don't work with the mouse on these older boxes much any more - sorry