CPU's, GPU's, RAM, Flat Panels, HDD's, etc require billions to even do something competitive, probably protected by many patents, are relatively stable industri

CPU's, GPU's, RAM, Flat Panels, HDD's, etc require billions to even do something competitive, probably protected by many patents, are relatively stable industries with little market changing breakthroughs by new companies(one counter example is Intel with it's 3DXpoint memory, but it's Intel) partly because it takes tons of money to come up with them, have(i think) a lot of impact on their relevant supply chain. On the other hand, if you're a researcher that came up with some innovation in those technologies, it makes more sense either to license or let your startup be bought by the big companies. And on top of that we don't have a working anti-trust system, so companies just buy their way to duopolies.