History of the Internet
Perfect friday morning coffee break reading...
[1971] Vietnam vet John Draper (Cap'n Crunch) learns that a toy whistle given away inside Cap'n Crunch cereal generates a 2600-hertz signal, the same high-pitched tone that accesses AT&T's long-distance switching system. Draper builds a blue box that when used in conjunction with the whistle and sounded into a phone receiver allows phreakers (phone hackers) to make free calls.
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