I found this blog by accident in a search about generation of VGA signals with an FPGA.
It is filled with fine information about technology and history and background stories.
It is written by a person called "Ken Shirriff" and has topics on
"""Computer history, restoring vintage computers, IC reverse engineering, and whatever"""
His twitter : https://twitter.com/kenshirriff
This person has a passion, you can learn from this guy.
Check out his blog.