"Teach him to use computer" is too vague.
What applications?
- Just Email, IM, surfing? Embarrasing but "Computers for Dummies" books take a good step by step approach." Replace computers with email, instant messaging, surfing,etc. Then set up his menus with minimal icons. Set up his favorites for him so he can go to places and build confidence (hobby, age group, etc.) and include a google toolbar in IE. Make him a Yahoo, netscape, etc homepage with all the things he would want to look at so he can just clcik. Financial news, movie show times, weatherunderground, sports.
- Office applications? Same "dummy" answer. Maybe a beginner class.
- Multimedia? I took (and now teach) some courses in this. Best in a hands on class.
What I'd really recommend is a night class on using computers and then one on applications. We offer several through our company's employee association. Have any options like that? If not make sure he knows the basics at least:
Left Click
Right Click
Double Click
Back Arrow
X box to close and start over.
Warn him about porn bombs (scared the **** out of my wife when she hit her first one).
Latter ease him into cut and paste
Now the hard part. Can he type at all? If not it gets ugly. Beginners like to hit all the wrong keys and get themselves lost real fast. I have no fix for this it took me years to get my wife past this hurdle and I still only have a 50-50 chance of talking her through a problem over the phone.
If you don't live at home show him how to accept remote control so you can show him things quickly if he gets stuck.
Oh yeah, and make sure you counsel him on the moral and legal issues involved in downloading from p2p networks.