What can I do with my old computers and hardware?  

Best way to get rid of unsed items is to sell them, there can be usefull to other.When I feel like I have lot of unsed item I sit and sort them out and sell them out and used the money pay some of my accounts this helps a lot as it reduces my debt.In times we buy stuff which we don't need and you can found out you only use you items once they are still new, but even if there are old you can still have something.I don't believe in giving people old stuff that's why I prefer to sell the unsed stuff.