This. Also

"Spinoff" by Charlie Sporck - early Silicon Valley history on Semi companies

"Commodore - a company on the edge" by Brian Bagnall

"Only the paranoid survive" by Andy Grove - Intels switch to Microprocessors. (Interestingly you can see in the book that he realized the power of the internet, but failed to act on it to some extend)

Definitely one of the best tech case study books I've ever read. Book flows so well.

I was going to add this one myself. I've read it multiple times over the years since it was published and it still touches the engineer in me. Great, great book.

I recommend this book every time someone asks for recommendations about computer company history. This book is one of my all-time favorites.