Around 1980, while taking a "Saturday Morning Class" in Toronto - I discovered that there was a lab of ~24 Commodore PET 2001 (8K - blue phosphor, chiclet keyboards) at George Brown College. Spent as much time as I could there engaging with the early hacker community who all brought their shoeboxes of 5-1/4" floppies to trade programs. It was there that I had my first OMG moment when a much older kid showed me his floppy disk catalog program that could sort so much faster than mine did (he used quicksort).

I remember jones-ing for that computer. It was too expensive though. Then I got a series of books about how to build an Elektor Junior, which was a cheaper alternative. I did that, I loved it; and then in short order the BBC Micro stole my heart. The through-line was the 6502, which retains a place in my heart even today. It's fascinating to me that there still remains interest in that CPU even today, with papers and publications and repos. That CPU has had a great innings. Both simple enough and complex enough. It went on to power the Apple, the Pet, various Acorns. It's interesting to look at the family tree, even the ARM chips have a family association (say, cousins through the Acorn line).

Yeah this is unreadable trash.

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Thanks. Nice links. I love the handwritten assembler pic with mapping from mnemonics to op codes. If you had to punch it in on a hex keypad, you absolutely needed that. Unfortunately, I never was organized enough to have different color pens :-)