I'm am familiar with Windows (XP primarily but also 95 and 98). I am also familiar with Mac OS Leopard. I used to use Mac OS 4 through 9 as well, but that's ancient history.
My education background is a Bachelor of Arts with a Major in History, and Math and Chemistry Minors. In highschool and university I took some computer courses, including Pascal and Modula-2. I have been an Internet user since 1995, and I have been online since 1986 (on local BBSs).