Retro Tech Week In the early days of microcomputers, everyone just invented their own user interfaces, until an Apple-influenced IBM standard brought about harmony. Then, sadly, the world forgot. In 1981, the IBM PC arrived and legitimized microcomputers as business tools, not just home playthings. The PC largely created the industry that the Reg reports upon today, and a vast and chaotic market for all kinds of software running on a vast range of compatible computers. Just three years later, Ap...