I would play around with a c64 programming but nothing too complicated. But when I got my 8086 with monochrome monitor I wrote a drawing program to save bitmap files and a drafting program and a space invaders type game, you were Boba Fet from starwars commanding the Millenium Falcon and you had to save your home world from tie fighters. I thought it was very good but the further up in levels you got it got more impossible to play so I never really finished it. Also when I was in Calculus I made this program on one of those TI-86 to do any problem and tell you the steps on how it was done and graph it. It took me a half a year to do but when I got it finished it spread like wild fire....and the AP test was not that far away...he he he...come to think of it I barely used my TI-86 on my test....hmmmm a lot of good that did me...but ha ha I was a legend in my class.