It's more electrical/silicon engineering than technical history, but I absolutely love this article:

"The 6502 CPU's overflow flag explained at the silicon level" by Ken Shirriff,

http://www.righto.com/2013/01/a-small-part-of-6502-chip-expl...

If you’re visiting the Bay Area, be sure to visit the Computer History Museum in Mountain View. It’s the Mecca of computing history. Also, for early internet history, I’d recommend Katie Hafner’s book: Where Wizards Stay Up Late.

I did and I loved every moment of it :) Also in meatspace, enjoyed Bletchley Park in the UK.

Re: books, I liked Robert X. Cringley's Accidental Empires, but it covers only until 91 (or 93 if IIRC for the 2nd edition) of the PC industry and not really technical.

edit: also, of course: https://devblogs.microsoft.com/oldnewthing/

The Bletchley Park museum is about ten times better and has lots of running computers, knowledgeable staff, and stuff to play with.