ebook
This ebook is full of many chapters. It dicusses the issue of a long distance telephone switching system crashing causing all these problems. This meant that some people lost their phone connection for up to 9 hours and then when they learnt how to fix it they could not fix them all.this ebook dicuss the problems and the exact crisis that took place in 1990 on 15th january.
This ebook is good because it is a book that could be read on the internet because the licencing law were not arround then this can be now be read on the internet as a book.
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