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Although no one can scientifically explain why “Hello, World,” grew to become wildly popular, the “Hello, World” program marks a major change in the historical rhetoric of programming. Let’s look at its historical context. Still in its Shell It’s hard to imagine today, but before “Hello World” was published in Kernighan’s book, computers carried a negative connotation among the public before the 1970s. They were massive mainframes, incredibly slow, filled an entire room and needed a full staff of scientists or researchers for maintenance. In fact, before the late 70s, computer scientists programmed using stacks of punch cards!
People generally saw computers as untouchable, complex and ridiculously expensive devices reserved only for the elite in academia, defense or the government. In fact, the industry titans who devoted their lives to the world of computing worked hard to overcome this stigma. It’s amazing to think how we’ve come from then. Today some people actually feel anxiety when they don't have their personal devices. One of the first famous uses of computers in the US was back in 1890 when the Automatic Electrical Tabulating Machine calculated data for over 60 million Americans. In the 1940s, the Bombes and Colossus computers decrypted German codes during World War II. The 1950s welcomed the first commercial computers, like the Zuse 3 and UNIVAC, for arithmetic operations.