Every wonder what all those connectors and slots are. Hardware has gone through many phases and hardware changes it’s hard to keep up. Here is a handy reference guide I found at “Geeks are Sexy” . It even includes hardware from Apple computers. The poster also shows how hardware has changed in the short history of PC’s which is kind cool too. It can be viewed in your browser or perhaps printed out for a handy poster or flyer. Click on picture to got to original source.