Not to run afoul of Darwin’s theory of survival of the fittest, nerds needed to evolve and adapt—which is just what has happened. In the 1970s and 80s, nerds used the keyboard. Nowadays most of them can also use the mouse.
As a well-architectured operating system with immense flexibility and stability, Unix has always been iconic for its role as a server. But that was not going to be enough for the 21st Century, when it had to reach out to the masses with an interface that was, in its ease of use, a match for the brilliant underlying systems-level programming. If there is one thing ...