In the 1960s, computer scientists at American universities and in the U.S. Department of Defence devised a plan for a network of computers that could all communicate with each other.
After the hardware was put in place, researchers at UCLA attempted on Oct. 29, 1969, to log in to a computer at the Stanford Research Institute in Menlo Park, Calif.
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In order to log in to the two-computer network, which was then called ARPANET, programmers at UCLA were to type in “log,” and Stanford would reply “in.”
The UCLA programmers only got as far as “lo” before the Stanford machine crashed.