I was wondering why this seemed so outdated and ignorant for something published in 2018 (only 10b transistors? 'computers are serial', really?), but I see that

I was wondering why this seemed so outdated and ignorant for something published in 2018 (only 10b transistors? 'computers are serial', really?), but I see that it's from a 2015 textbook, using citations for computing hardware published in 2008, and presumably referencing hardware from 2007 or earlier...