Like others here, I see, I learned to program with GW-BASIC. Well, actually it was with the clunky BASIC from my beloved C64, but I wrote my first actual programs that did something with GW-BASIC, running on a trusty PC XT clone.

I also remember it had a graphics mode -- Hercules card, ambar monochrome monitor -- which sort of resembled Logo's turtle. You gave directions to a sort of pencil tip. I don't remember what the statement was called, but I remember I used it to program games.

I owe a lot to GW-BASIC :)