I work as a MIS Manager in Silicon Valley for 20 years and retired over 10 years ago. I had to pass a half dozen of Microsoft tests so I could get certified. I fell behind in computers so I would just like to study a book like I did in school so I can highlight and underline, sort of like the olden days to exercise my brain which seems to be going downhill. The A+ is 80% non-useable which I obtain 17 years ago. PC Build for Dummies would be demining. So does anyone have a suggestion of a book to learn about CPU’s, Mother Boards, RAM, Video Cards, and what makes a computer tick? I'm going to build another computer but this time I would like to make sure I know what I'm doing. I just need to exercise my brain before senility sets in.