I had such great times with mine, aside from the games. I remember the first game I programmed on it, sort of a cross between Pac-Man and Berzerk, so walls and

I had such great times with mine, aside from the games. I remember the first game I programmed on it, sort of a cross between Pac-Man and Berzerk, so walls and pits and various things chasing you. Due to the doubly-interpreted BASIC, it was quite slow and I was vexed; checking motion into walls and pits got more and more slow with each obstacle. Eventually I hit on, rather than a series of IF statements defining a wall that one might not move onto, I could simply draw my walls and pits, then check the video array directly! Suddenly, my game was so much faster. It was the first time I had an optimization that relied on knowing something about the hardware.