The following quotes are from articles I read today:
"The so-called Y2K problem exists because many older computers and software programs recognize only the last two digits of the year and could mistakenly interpret "00'' as 1900."
"The Y2K bug could cause older computers, which may read only the last two digits of a year, to mistake 2000 for 1900, leading to errors or malfunctions over the turn of the year."
"The year 2000, or Y2K, problem occurs because some computer programs, especially older ones written to recognize only the last two digits of a year, might fail when the date changes from 1999 to 2000."
FOR THE LOVE OF GOD, WE KNOW!! STOP TELLING US IN *EVERY* STORY RELATED TO Y2K!!! geez.