This book has nothing to do with computers or games, but that doesn't matter. If you don't read it, there is always going to be a void in your life.
I must warn you that if you take my advice and look for this book, you will probably need to go to a used-book store, as it is out of print. It is published by Bantam Books, in case that might help you find it.
The book is about a fictional film director in the 1920s through the '40s. It takes place in an alternative universe. Well, sorta...it's very similar to ours. This book defies description; no joking. I have seen this book in every section of used book stores! This is a sensational book. Read it!