BUGS

A software bug is an error, flaw, mistake, failure, or fault in a computer program that prevents it from behaving as intended (e.g., producing an incorrect or unexpected result). Most bugs arise from mistakes and errors made by people in either a program's source code or its design, and a few are caused by compilers producing incorrect code.

Bugs can have a wide variety of effects, with varying levels of inconvenience to the user of the program. Some bugs have only a subtle effect on the program's functionality, and may thus lie undetected for a long time. More serious bugs may cause the program to crash or freeze .There are other types of bugs categorized security bugs and might for example enable a malicious user to bypass access controls in order to obtain unauthorized privileges.


TOP 3 BUG HAVOCS

1. Bugs in the code controlling the Therac-25 radiation therapy machine were directly responsible for some patient deaths in the 1980s

2. In 1996, the European Space Agency's US$1 billion prototype Ariane 5 rocket was destroyed less than a minute after launch, due to a bug in the on-board guidance computer program.

3. . In June 1994, a Royal Air Force Chinook crashed into the Mull of Kintyre, killing 29. This was initially dismissed as pilot error, but an investigation by Computer Weekly uncovered sufficient evidence to convince a House of Lords inquiry that it may have been caused by a software bug in the aircraft's engine control computer



The OS with the maximum bugs the computing n IT fraternity has ever seen


Speaking of bugs MICROSOFT is often regarded as champion of bugs .The first Vista edition launched by Microsoft had reportedly 22,000 bugs, so much so that even after 2 service packs n several updates later it is still regarded by the computing fraternity as ‘the most unstable OS in the world’.WINDOWS 7 the newest Microsoft entry into the market can be described as a patched up and compact version of the failure named ‘VISTA’. Not only in OS but even in the browser applications Microsoft is lagging behind because of bugs .FIREFOX 3.1 has been rated much higher than IE 7 of Microsoft by most software reviewers and critics.




TRY OUT THIS CLASSIC BUG!!!


This is something pretty cool...and unbelievable... At Microsoft the whole
Team, including Bill Gates, couldn't answer why this happened!
It was discovered by a Brazilian. Try it out yourself...

Open Microsoft Word and type

Quote:
=rand (200, 99)



Hmm .. happens for many such no.'s , but of different length

I think it's calling some functions of Word.

=rand(no. of lines, no of times to repeat in each line)

however there seems to be an upper limit, it seems to be ::
(no. of lines + no. of times to repeat in each line ) < 300
AND no. of lines <= 200 AND no. of times to repeat in each line <= 200
AND no. of output lines < 1000

maybe .. I am not so sure. like =rand(145,145) does not work, perhaps cause there maybe some kind of overflow ... LOL ...

Eg : to see the difference :::::::

try with =rand(1,2)
and then with =rand(2,1)