Video games begin, oddly enough, as cathode ray tube missile defense systems built in the late 1940s, adapted through the 1950s into simple mainframe games that grew steadily more elaborate. The film traces how the medium splits into arcade, mainframe, console, personal computer, and eventually handheld platforms, with Computer Space in 1971 marking the first commercially viable release and opening a new entertainment industry across the United States, Japan, and Europe. It spends real time on the industry's two crashes: a 1977 glut of obsolete systems, and a far larger 1983 collapse triggered by a flood of low-quality releases that wiped out console gaming in North America almost entirely while leaving computer gaming untouched. The aftermath hands the console market to Japanese companies for generations, with American and European attempts at comebacks failing through the fourth generation of consoles. The same pattern repeats in handhelds, where Japanese firms dominate until phones and PDAs blur the category. It is a plain, chronological account built on names, dates, and market data rather than nostalgia.