GW-BASIC too! Though in my case, running on a PC XT with an amber monochrome CRT. I remember doing graphics with GW-BASIC (on an Hercules videocard, I think you needed SIMCGA or something like it)... it was a bit like using the LOGO turtle, you had to go left, right, up and down.

Compared to GW-BASIC, QuickBasic was a luxury :)