In the early 1970s, the idea of an ordinary person owning a computer sounded absurd. Computers back then were more like aircraft carriers or nuclear power plants than household appliances – vast machines housed in data centres operated by teams of specialists, serving governments, universities and large corporations.
Then came Apple.
Founded on April 1 1976 by “college dropouts” Steve Jobs and Steve Wozniak, the Silicon Valley startup did not invent computing. What it did was arguably more important: it helped turn computing into a personal technology.