My USB mouses aren't working on my windows XP. Do I need to use a PS/2 interface mouse?

So i found this old windows XP, and i plugged in the mouse got it started up, but the cursor on the screen wouldn't move. i tried many mouses and every port on the tower. One mouse glowed red, meaning its plugged it, but it still wouldn't move. The previous owner of the computer said that the mouse she used wasn't a USB. So, is it a PS/2 Interface? And just in case its helpful, i can't get passed the login screen as the mouse will not move at all. And on an unrelated topic, i cant coect my keyboard either. None of the ports are working for anything.