This is just a quote from
Another problem was that there was no other nerds nearby who would appreciate this stuff much. I was the only kid in my highschool who could program in assembly language, for instance. I told a friend about this plotter I built, and, flipping through his BYTE magazine, said, well, this plotter here has twice the resolution and is 5 times as fast and can change pens. That was so frustrating. Besides, I was happy that the real plotter ONLY had twice the resolution.