[bleke]

I'm interesting in this too and wondering why nobody did huge task and compiling everything into one book, starting from refining materials to making 8051/Z80 era pc

[bradyd]

There is a book about building a toaster from scratch like this called "The Toaster Project" [1]. The conclusion is that it's extremely difficult and nearly impossible for even a simple device like a toaster. A computer would be significantly more difficult.

[1] http://www.thetoasterproject.org/

[Retric]

Just going from nothing aka sticks, mud, and ore to copper is probably a book on it's own.