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Y2K Information and Resources

What is Y2K Bug?
During 1960s to late 80s there was a widespread practice in all computer softwares to use two digits for repreasenting a year rather than using 4 digits. This was done to save computer disk and memory space because these resources were relatively expensive in those times. As the year 90's approached experts began to realize this major shortcoming in the computer application softwares. In year 2000, the computer systems could interpret 00 as 1900 messing up all the computing work. For example if a program function is calculating difference between two dates, it would calculate a negative number. For example difference between 1 Jan 2000 and 31 Dec 1999 could be calculated as -100 years rather than 1 day. This was a major bug for the whole finance industry. The bug not only existed in computer software but it also existed in the firmware being used in the computer hardware. In general this bug threatened all the major industries including utilities, banking, manufacturing, telecom, airlines.

How was it averted?
Y2K bug was a clicking time bomb for all major computer applications. The computer and system application companies came out with year 2000 compliant operating systems and system software. IT companies around the world spent billions of dollars to go through their entire application source code to look for the Y2K bug and fix it. Almost everybody raced around to make themselves Y2K compliant before the fast approaching deadline. Finally when the big day came, many utilities and other companies switched off their main computers and put the backup computers on work. When the clock ticked Jan 1, 2000, no major problems were reported. Almost every bank worked fine, no major power outages were reported, airplanes still flew and the whole world went on with its normal life.