This definition appears very frequently
Samples in periodicals archive:
Computer experts predicted that the year 2000 could cause problems to digital systems abbreviating a four-digit year to two digits, therefore making the year 2000 indistinguishable from 1900.
Aziz Inan, a professor of electrical engineering at the University of Portland, argues that last Tuesday "was a one-of-a-kind palindrome date with respect to all palindrome dates contained in all four-digit years.
Basically, the millennium bug was a problem which resulted from the practice of abbreviating a four-digit year to two digits.
Four-digit years when multiplied hundreds of times took up lots of memory.
Medic has defined Year 2000 Compatible as meaning that +MEDIC(R) PM has been programmed to (i) completely and accurately address, present, produce, store and calculate data involving dates from, into and between the twentieth and twenty-first centuries, which includes the years 1999 and 2000 and any leap year calculations, and not produce abnormally ending or incorrect results involving such dates as used in any forward or regression date based function; and (ii) support both two- and four-digit years to be displayed where appropriate and perform calculations which involve a four-digit year field.
12/31/99 to see if it will display the correct four-digit year, 1/1/2000.
The Vertex 2000 software corrects the Y2K problem by fixing the data, compressing four-digit year fields into existing two positions without making changes to the program source code.
Anything that is run on a date-sensitive computer system has to be checked to make sure it recognizes a four-digit year.