just brew it! wrote:
The original floppy drives for the Apple II used an unkeyed ribbon cable to carry both the power and data signals. Plugging it in backwards and applying power would blow little square holes in the tops of a couple of chips on the floppy drive's logic board as the dies instantly vaporized. I worked part-time in a PC shop back then; we got a lot of drives brought in to the service department with this particular type of damage.
Huh. I didn't know that. When we weren't using the Apple IIs at school to play Oregon Trail, we used them in the computer lab. My BFF and I figured out how to make a fake disk formatting utility in AppleBasic (or whatever) as a prank, that would make the drive LED flash, and made the drive head spin, like it was actually doing something. Freaked our teacher out. He put his grade diskette in, and when he ran the program, it spit out whatever text we used, and all inputs = yes. First time I'd ever heard a grown man shrieking like a cheerleader, because he thought it his grade disk was toast. Once we calmed him down, he congratulated us, and gave us both A's for the semester.
/And yet I hate programming. Go figure.
//Sorry for going off-topic. I'll stop now.