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* [http://www.applelogic.org/UserManuals.html Apple II Reference Manuals]
* [https://youtu.be/36NgkpctW6k How the Apple 1 computer works] [https://youtu.be/VStscvYLYLs How the Apple II Works!] [https://youtu.be/bs88-m9Du1Y The Franklin Ace 1000 - An Early Apple II Clone] by [[The 8-Bit Guy]]
* [https://youtu.be/r1VlrJboDMw Inside the Apple II] by [[Stephen Edwards]]
*[https://nerdlypleasures.blogspot.com/2021/10/apple-ii-composite-artifact-color-ntsc.html Apple II composite artifact color]