X =10 so it was the year the computer systems freaked out.

The term Y2K had become shorthand for a problem stemming from the clash of the upcoming Year 2000 and the two-digit year format utilized by early coders to minimize use of computer memory, then an expensive commodity. If computers interpreted the “00” in 2000 as 1900, this could mean headaches ranging from wildly erroneous mortgage calculations to, some speculated, large-scale blackouts and infrastructure damage.