Hi there, I would suggest just getting to know the basics of computer usage can be helpful. Like keyboard shortcuts, or browser shortcuts. Then maybe start getting tools that make you a more efficient worker on a computer (eg.dropbox, evernote, text editors, browser plugins, chat tools, email programs, bookmarking services). Learning these tools will help make your time on a computer more efficient and worthwhile. It will help keep your notes, thoughts, and ideas organized better which are essential traits of any coder. I suggest a site like lifehacker.com's BestOf series for shortcuts, tools, and other general computer related things. Gizmodo.com is another sister site that is part of the Gawker family that will have some decent articles to help you be a better computer-ist. There are tons of other sites out there to help, if you search reddit.com I'm sure they have a couple topics on these things as well.
Good luck!