These days, the graphic user interface (icons, windows, Trash cans) is standard. MacOS, Windows, Chrome OS, Android, iOS—every operating system is fundamentally the same, and a very long way from the lines of typed commands that defined the earliest computers.
That’s not to say that the graphic interface hasn’t evolved, though; it has. Herewith: a grand tour of the state of the art in computer desktops—the one in Sierra.