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THE SOFTWARE HORROR PICTURE SHOW |
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AT&T Long Distance Service Fail, 1990![]() On January 15, 1990, one of AT&T's switching-stations in Manhattan crashed. Station after station across America collapsed in a chain reaction, until fully half of AT&T's network collapsed. The collapse was caused by a software flaw in the front-end processors of all 114 of its 4ESS switching-stations. ![]() Several Sources: ![]() ![]() |
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Dependable Systems & Software Group | Department of Computer Science | Universität des Saarlandes |