Z:gnu-www-ja-stallman-kth--fc6bcb-What is a computer after all b/en

What is a computer after all but a universal machine? You've probably studied universal Turing machines, the machines that can imitate any other machine. The reason a universal machine is so good is because you can make it imitate any other machine and the directions can be copied and changed, exactly the things you can't do with a material object. And those are exactly what the software hoarders want to stop the public from doing. They want to have the benefit of the change in technology, to universal machines, but they don't want the public to get that benefit.