Part 2: https://www.abortretry.fail/p/the-history-of-commodore-part-...

Part 3: https://www.abortretry.fail/p/the-history-of-commodore-part-...

To play around with a virtual PET 2001, see: https://www.masswerk.at/pet/

(Click the button "Prg Library" for some games and more.)