What was the first ARPANET message?
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"hello world"
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"lo"
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"mary had a little lamb"
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"Arpanet, cyberspace"
B
Correct answer
Explanation
The first ARPANET message sent was 'LO' - intended to be 'LOGIN' but the system crashed after the first two letters. This historic moment occurred on October 29, 1969, between UCLA and Stanford Research Institute. 'hello world' is programming tradition, not networking history.