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1 definition found
 for Year 2000
From The Free On-line Dictionary of Computing (18 March 2015) :

  Year 2000
  century meltdown
  millennium bug
  millennium meltdown
  Y2K
  
      (Y2K, or "millennium bug") A common name for all
     the difficulties the turn of the century, or dates in general,
     bring to computer users.
  
     Back in the 1970s and 1980s, the turn of the century looked so
     remote and memory/disk was so expensive that most programs
     stored only the last two digits of the year.  These produce
     surprising results when dealing with dates after 1999.  They
     may believe that 1 January 2000 is before 31 December 1999
     (00<99), they may miscalculate the day of week, etc.  Some
     programs used the year 99 as a special marker; there are
     rumours that some car insurance policies were cancelled
     because a year of 99 was used to mark deleted records.
  
     Complete testing of date-dependent code is virtually
     impossible, especially where the system under test relies on
     other systems such as customers' or suppliers' computers.
     Despite this, the predicted "millennium meltdown" never
     occurred.  Various fixes and work-arounds were successfully
     applied, e.g. time shifting.
  
     And yes, the year 2000 was a leap year (multiples of 100
     aren't leap years unless they're also multiples of 400).
  
     PPR Corp Y2K FAQ
     http://pprcorp.com/y2k/y2kfaq_j97.html)">(http://pprcorp.com/y2k/y2kfaq_j97.html).
  
     (2003-08-15)
  

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