You know that habit of pulling on your keyboard and mouse to get just a little more cable length? Rarely do "out of the box" computers have long enough cables to be comfortable or where you want them on your desk or workstation.
As you spend all that time re-adjusting your keyboard and try to get just a few more inches of cable length, you are damaging your PS/2 connections and potentially putting your computer at risk for more damage.
By getting a Male to Female PS/2 cable like this one from Gefen, you can extend the current length of your keyboard and/or mice to a comfortable length for your perfect position.
Getting your mouse and keyboard to the right spot with a little excess cable will keep your PS/2 connecting ports operating normally and prevent your busy wrists from getting carpal tunnel or other nerve problems caused by typing in awkward positions.