@OmSigDAVID,
If all you need is a typewriter, then you already have what you need. I take it you want to do something more, but being "computer savvy" is a very wide topic. What would you like to know about? I find the best way to learn is to have a specific project in mind. Some suggestions:
- Learn a programing language with a goal to make a simple game.
- Create your own web page, either by typing in basic html or by using an editor. Bonus points: add PHP code (see programing language above.)
- Build your own computer. It's a lot easier than you think