Hi all, I want to know about the term BUG in computer softwares, what is it, from where it come, who will find this, how to resolve this, what is the process.

Actually I know that answer.

Back during WWII, development was ongoing and there was a dead cell. The lady that traced the failure back to the cause found the carcass of a bug contaminating the cell. And so, when errors were found, you were chasing the bug that caused the failure. In software the term used is debugging again because you are looking for the bug that is causing the error in your otherwise perfect code.

With respect to the software, since most of application segments are written by team with specific tasks, the owner of that section of code own the debugging process.

For code written in C or C++, you go back to the source file and run it through the editor. With the source on the screen, then you match the area of code to the position in the output of the compiler that identifies and error and start searching backwards until you find the actual error, fix it, re-compile it and when it complies cleanly, send it back to test and certification.

However, if you are the only programmer, you own the whole ball of wax.

Welcome to the world core dumps, code stacks, libraries and being human and trying to argue with a machine. :)