How Two Bored 1970s Housewives Helped Create The PC Industry | Fast Company | Business Innovation. I have written before about my Atari game machine that I discovered could be used for automating correspondence and documents. However, my first business computer was a VectorGraphics computer with a 5 Gig hard drive, a green screen, and running the CP/M operating system. When the IBM PC started to control the market, I later upgraded to a dual boot Vector machine, the SX, which ran both CP/M and MS-DOS. However, as we all know, DOS took over, and we all started buying IBM clones, or IBM computers. If you want to know what that era was like, read this great article about the founders of VectorGraphics. Good stuff.