@TechShark: I was always amazed at the way MOD trackers could play something that, if you had a lot of imagination, somewhat sounded like actual digital samples over a PC internal speaker. Okay, they obviously sounded much better on an actual sound card, but it was still pretty amazing compared to the beeps the PC speaker normally produces.
I was pretty late on the whole computer sound front. The first computer with a sound card that I had was a 486, obviously long after sound cards had been around. A friend of mine had an 8086XT with an AdLib card, so I would frequently play games at his house; his PC might be slow compared to the top-of-the-line 286AT that we had at the time, but the games sounded much better!