what is "2k problem" in computers?

Question

i am a +1 student...my computer mam asked me to find the answer for this ques?...so please answer me .

Answer 1

The year 2000 -- Y2K -- problem is easy to describe and often simple to fix. It has three parts.
Dates with Two-digit Years: The most common year 2000 problems result from software and data that does calculations on or was written with dates with two-digit years. Two-digit years have always worked in the past: subtract 1994 from 1998 or subtract 94 from 98 and you get the same thing. However, 2002-1998=4 isn't the same as 02-98=-96. Sorting on dates with two-digit years also fails -- 98 is clearly after 00, isn't it?

The Year 2000 is a Leap Year: You probably know that every year divisible by 4 is a leap year. 2000 is divisible by 4, so it's a leap year, right? But there are two exceptions. Years ending in 00 (there's that old 00 cropping up again) aren't leap years. So the year 2000 isn't a leap year. But years divisible by 400 are leap years, which, finally, makes the year 2000 a leap year.

This means that after February 28, 2000, software that doesn't know that 2000 is a leap year will get the Julian date (number of the day in the year) wrong for the rest of the year, and will get the day of the week wrong forever. It won't know when to charge weekend rates, whether the vault should be open today, or that you really could have bought your house on February 29, 2000.

With the Year 2000 Come Several "Special" Computer Dates: There are other dates that were or will be computer gotchas. December 31, 1995, for example, which is the first of several dates that computer programmers used to mean forever. (That's dumb, but not too dumb; after all, George Orwell thought 1984 was forever.) Some programs use 00 to indicate a missing or invalid year. The date 9/9/99 might mean signal the end of the file. (That's a good one, isn't it?)

Answer 2

the y2k problem (the acronym coming from "the year two thousand) was something to do with number representations in computers. You see, when a date is stored, the year is stored by its two last digit only (e.g., 1985 is 85, etc.). However, when the year 2000 aproached, it started looking like entering the year 00 would be accepted as the year 1900. Which is in the past. Which got a lot of things very confused. And if the actual date (Jan 1, 2000) came, a lot of things could have stopped working altogether. Including computers running power plants, airport air control, banks, and so long, and so forth.

So, as far as I know, the fix was to pick a year (I am not 100% certain which the year was; 1930 or 1950 or something like that, and if the two-digits year number was less then thirty/fifty/whatever, the computers were set to accept that as 20and the number; if the number was larger than that, the computer was to accept it as 19and that number. E.g., 10 = 2010; 85 = 1985.

Answer 3

the 2k problem was what everyone referred to when it was still the year 1999 and computers everywhere were supposed to show 2000, and some old PC's were not programmed to allow dates past the year 1999 and so the programs were breaking.

Also many databases were only setup to handle year formats with two digits, and so many banks and financial businesses around the world needed to change their systems to use a 4 digit year stamp on files and in databases, otherwise the banking systems would think it was the year 1901.

Thankfully the year 2000 came and the worlds computers did not come to a screetching halt. Infact now most computers have a 4 digit year code because of this and we won't ever again have this problem, until the year 9999, which is a long ways away. :)

Answer 4

At around the turn of the century, a rumour went around that computers and other electronic equipment using timing algorythms would fail and cause chaos. This was based on the belief that designers had used only 8 bits to represent the year in early designs. Thus, the two year digits would not be able to cope with the year 2000. IT designers were employed at extortionate salarys to test and, if required, fix these computers.
It turned out to be a myth, mostly, as designers had not started at the year 1900, but much later on in the century when the first computers were designed, having forseen the problem. Thus, old computers using this method will still be able to calculate the year up until about 2041, by which time none of them will still be around.

Answer 5

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Answer 6

To squash "Jeff K"'s answer right down... the yr 2000 problem (millenium bug) meant that certain old computers/electric devices wouldnt be able to display or function correctly, as the year 2000 has "00" at the end. So if a device showed dates as "97" for the year 1997, it would malfunction come millenium. But obviously, it happend for various things on much wider scale.

tom

Answer 7

If you mean what was the 2K issue with computers - It was that before the year 2000 some applications / clocks may not have been programmed to go from 1999 to 2000, in other words they may reset to 0000. People feared systems would crash or work would be lost etc..

Hope this is what you ment / were looking for.

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Answer 10

Guessing it was when we thought computers would crash on 1st January 2000.