Bellow there is a video explaining the evolution of the PC games according to the hardware evolution!
You can see how the hardware and the games developed through the years to become what they are now!
Also we provided a link for you so you can see the evolution of the graphical effects of the games since the beginning:
See how they were developed and some of you will remember some of the all games they played as kids!
Also, see the video game history timeline here.