Y2K Bug

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Overview

The Y2K Bug, sometimes known as the Millennium Bug or Year 2000 Problem, was a result of digital storage using two-digit abbreviations for years in their systems. In the 1990s, many people were concerned that the rollover between December 31st, 1999 and January 1st, 2000 would result in mass computer failure.

Background

When computer languages were initially developed, coders opted to drop the “19” in years as a way to save some of the limited space they were given to work with.^[1] This ideology was transferred to COBOL, a language created in 1959, which was used to program many of the world’s personal computers. In the 1960s, an IBM programmer named Robert Bemer was helping a group from the Church of Jesus Chris of Latter-Day Saints with a genealogical research project^[3] when he realized the first two year digits were necessary for dates in the seventeenth and eighteenth centuries. Bemer, who participated in developing ASCII and the process behind the Escape button helped develop a way to use a four digit reference code for years and became an avid proponent of implementing this throughout COBOL. He published warnings about the need for four digit year codes twice in the 1970s.^[4]

The term “Y2K” was not coined until June 12th, 1995 when the Massachusetts-based programmer David Eddy suggested the term on the Year 2000 mailing list in lieu of Year 2000, Century Date Change and Faddle, among others.^[5] By 1997, the mailing list had more than 16,000 subscribers^[6] and was maintained by Peter de Jager, who also ran Year2000.com^[7] as a hubsite for information on the possible bug.

Search Interest

External References