With the rate at which computer components are scaling down in size and scaling up in power, I'd imagine that we'll have reached another turning point in computer engineering — something similar to the tyranny of numbers back in the 60's. We'll have quantum computers that literally cannot be made any smaller. Instead of focusing a great deal of effort into developing something that uses smaller components (if that's even possible), I imagine we'll see a major shift to cloud computing and storage. Everyone will have access to computing devices (which will likely be found all over the place, in virtually everything), but all of the major processing will be performed by remote super-computers. At this point, most people should have access to relatively fast, wireless internet access, and a great deal of heavy processing will be streamed with virtually no lag. Computing power will have advanced so far that I couldn't even begin to predict what it would be capable of, but everyone would have access to it. Super-realistic, real-time 3D rendering and physics simulations would be trivial. By the end of the century, I wouldn't be surprised if we had successfully emulated human intelligence.