Year 2000 problem

(redirected from Y2K bug)
Also found in: Dictionary.
Related to Y2K bug: Y2k scare

Year 2000 problem,

 

Y2K problem,

or

millennium bug,

in computer science, a design flaw in the hardware or software of a computer that caused erroneous results when working with dates beyond Dec. 31, 1999. In the 1960s and 70s programmers who designed computer systems dropped the first two digits of a year when storing or processing dates to save what then was expensive and limited memory; such a system recorded the year 2000 as 00 and could not distinguish it from 1900. In sorting, comparison, and arithmetic operations, the year 2000 would be treated as if it were equivalent to 0 rather than 100, causing incorrect results. The algorithm used to calculate leap years was also in some cases invalid, creating an additional problem in calculating the correct date after Feb. 28, 2000. Because the designers of such computer systems expected them to be replaced before the beginning of the year 2000, using a two-digit date was not regarded as a problem. Thousands of older computer systems, called legacy systems, were still in use in the 1990s, however, particularly in the finance and insurance industries, creating a potential operational and financial nightmare, which was termed Doomsday 2000Doomsday 2000,
term coined by Canadian computer consultant Peter de Jager in 1993 to describe the operational and financial impact of a defect of contemporary computer hardware and software, known as the Year 2000 problem, that caused computer programs to incorrectly perform
..... Click the link for more information.
. In the late 1990s business, government, and other computer users spent thousands of hours and millions of dollars to correct the Year 2000 problem, and only minor problems were experienced after Jan. 1, 2000.
References in periodicals archive ?
No major problems stemming from the Y2K bug have so far been reported both at home and abroad.
In some ways, the Y2K bug was like the space program in the '60s and '70s, which spun off technologies that transformed American business," says Mitchell Gross, president and CEO of Mobius Management Systems, a provider of web-based software solutions headquartered in Rye, N.
According to another e-legend, if the Y2K bug didn't shut civilization down, the Feb2K bug will.
Microsoft's Bill Gates expects Y2K bug glitches to strike older computers at small businesses in coming weeks.
Malfunctions at two nuclear power plants in the Tohoku region early New Year's Day were due to the Y2K bug, although the problems did not seriously affect the plants' operations, the plants' operators said Tuesday.
They said the Y2K bug would be catastrophic for corporate America - and it was.
The Y2K bug could cause computer systems with software that identifies years only by their last two digits to crash or malfunction on Jan.
The zoo is concerned that the Y2K bug, which could cause computer systems with software that identifies years only by their last two digits to crash or malfunction on Jan.
Computers on the Japanese icebreaker Shirase, which has been docked at the base since last Friday, were also updated to tackle the Y2K bug, before the vessel's departure from Tokyo on Nov.
But it has been and is used both maliciously and shortsightedly--the former resulting in the plague of computer viruses, and the latter in the Y2K bug Since technology reflects those who create it, one can only hope that, going forward, the best minds will continue to stay one step ahead of the hacks.
Last fall I wrote about what facilities could do to reduce the risk of waking up with a digital hangover on January 1, 2000, caused by the Y2K bug ("Vaccinating Your Facility Against the Y2K Bug," October 1999, Vol.
OK, I'M A LITTLE EDGY ABOUT JANUARY 1ST THIS year, but not because of any Y2K bug.