Bug
A bug is a fault in a software program. The term bug was
used originally when the first computers were developed. These computers
consisted entirely of large electric circuits. It was not uncommon to find a
bug such as a moth or other insect stuck in an electric circuit. This had to be
removed to get the computer working again. While computers now have gotten much
smaller, the term bug has stuck.
Bugs are a real problem for software developers. There is no
software that is bug-free. In fact, software developers often spend the
majority of their time fixing bugs in the software. There are many debugging
tools available. For example, Microsoft’s development tools such as Visual
Studio come with excellent debugging tools that allow developers to find bugs
relatively easily. All other major development environments also come with
debugging tools that allow developers to fix bugs in the software they write.
The cause of bugs is almost human error. Humans make
mistakes. Complex software often consists of many thousands of lines of code.
Some programs contain millions of lines of code. So it is not surprising that
bugs can sneak into the code relatively easily.
