"There is no one agreed family tree of video games, arranged and pruned by consensus. There is no single progenitor that sits at the top of that tree, the seed from which all other video games originate.
The video-game family tree is knotted, tangled and grimly contested. We can all agree that Donkey Kong begat Super Mario Bros. But did the modern role playing games flow from Adventure, Wizardry or Black Onyx? Historians can't even agree on who first put a game onto a computer. There were, rather, multiple, dispersed inventors, people who eureka'd in darkened bellies of universities, where the comically large mainframe computers of the mid-20th century hummed with potential and electrical warmth."