We had 8086 IBM machines in our typing class. I remember writing a program to send random bits to the big dot matrix printer. I'd keep a buffer and when the pri

We had 8086 IBM machines in our typing class. I remember writing a program to send random bits to the big dot matrix printer. I'd keep a buffer and when the printer did something strange I'd save the buffer and replay it till I isolated the sequence. When a substitute would show up the printer would put on a show ;)