The Y2K bug was a computer programming issue that was caused by the way dates were stored in many computer systems. In these systems, dates were stored using only the last two digits of the year, which meant that the year 2000 would be interpreted as 1900. This could have caused all sorts of problems, including:
* Computers crashing or malfunctioning
* Financial transactions being processed incorrectly
* Government systems failing
* Transportation systems being disrupted
* Power outages
The Y2K bug was a serious problem that had the potential to cause widespread chaos. In order to prevent this, many businesses and organizations spent billions of dollars to upgrade their computer systems. As a result, the Y2K bug ultimately did not cause any major problems.