There were many car companies that were making automobiles before Henry Ford made the first mass production car. That was when normal people were able to purchase automobiles. The first company to mass market a personal computer was Radio Shack. Commodore had the first personal computer prototype, but it would take awhile to get them on sale. Apple was making and selling Apple IIs, but in very limited numbers. Radio Shack has computer in huge numbers, from cost to cost.
It was in the Radio Shack store in Burney that I got to play with a personal computer for the first time. I don’t remember any software that came with it, except for Space Wars. This game, a direct rip off of Star Trek, was loaded from a cassette tape through audio cables to the computer. The tape setup was so poor that loading Space Wars failed about half the time.
Space Wars was the only computer game I knew for over a year, so it defaulted to the best (and worst) computer game I knew. About the same time I was playing D&D, and that was much more playable.