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Macintosh

Owners and users of Apple Macintosh computers should emerge almost completely unscathed from the problems of the year 2000. Apple claims the only applications affected will be the few that do not use the Macintosh operating system Toolbox for clock functions.

This immunity comes about because of the way in which Macintosh computers store times and dates. Even the first 128K computer launched in 1984 used a long word to store seconds, with the clock starting at 1 January, 1904. This, says Apple, allows problem free timekeeping until 6:28:15am on 6 February 2040. And current Macintosh operating systems use a 64-bit signed value for the date and are able to handle dates from 30,081BC until 29,940AD.

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