Comment Computer Merit Badge for Boy Scouts (Score 1) 260
Here's what I have done a few times with old computers. After installing Linux on them, I have used them to teach the Computer Merit Badge to boy scouts at the summer science camp run by our local council. At the end of it, scouts who did not have their own PCs took the machines home. By the end, scouts did not just have machines they knew how to use - they had machines they knew how to program - even though the programming requirements for the Computer Merit Badge are rudimentary, the longest journey is the one that's never begun and the badge took them the first few steps down the path.