Heh sil, I've actually
programmed in TRS-DOS - back on the ol' TRS-80...
Built a sweet Lunar Lander game that even had little incoming meteors you had to dodge. Not as cool as Atari's vector-based graphics original, but damn fun to actually create it myself. Ah, the good ol' days...
You know, I've
still got the cassette tape of that program and managed to scrounge up a TRS-80 Emulator a few years back. Someday I'm gonna whip that puppy out and play it again.
I just had to see the TRS-DOS image, so here it is: