2600: The Hacker Quarterly magazine's name comes from the discovery in the '60s that a plastic toy whistle that was given away free in boxes of Cap'n Crunch cereal could emit a tone at precisely 2600 hertz, the same frequency that was used by AT&T long lines to indicate that a trunk line was ready and available to route a new call. This would effectively disconnect one end of the trunk, allowing the still-connected side to enter an operator mode.Anyway CCC2007 had a nice banner design, don't you think?
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