Design Considerations for an Anthropophilic Computer →
https://marco.org/2008/02/10/design-considerations-for-an-anthropophilic-computer
Seeing the guts is taboo. Things in sockets is taboo […]. Billions of keys on the keyboard is taboo. Computerese is taboo. Large manuals, or many of them (large manuals are a sure sign of bad design) is taboo. Self- instructional programs are NOT taboo.
An excellent, accurate, funny design memo from Jef Raskin to the Apple team that developed the Macintosh.