Tired techie broke the UK's phone network
Briefly

In this week's installment of The Register's 'Who, Me?' column, a reader named Wayne recounts a harrowing experience while upgrading the crucial System X hardware for phone exchanges in 1980s England. After weeks of overnight shifts, fatigue set in, leading Wayne to mistakenly perform a procedure on the incorrect processor due to a mix-up with their placement. This story underscores the critical nature of precision and attentiveness when handling essential technological components, especially under the pressure of continuous late-night work.
At the time of this job, Wayne had been doing similar upgrades for about three weeks and they all required pulling an all-nighter. Wayne's routine saw him roll into work at 21:00.
Upgrading the machines required them to be powered down so new hardware could be installed. System X's designers deliberately made that hard to do, to prevent accidental shutdowns.
Read at Theregister
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