Manuals/User Guides
https://vintageapple.org/macmanuals/
https://support.apple.com/en_US/manuals
http://cini.classiccmp.org/pdf/Apple/
http://www.applelogic.org/UserManuals.html
https://downloads.reactivemicro.com/Documentation/
iMac_Intel-based_Mid2007_UserGuide.pdf
apple.applei.1976.102646518.pdf