15. Debugging and Performance Optimization
THE FIRST ACTUAL CASE OF A BUG BEING FOUND IS ON DISPLAY AT the Smithsonian National Museum of American History. A bulky machine known as the Mark II Aiken Relay Calculator was being tested on September 9, 1947, when the operators found a moth trapped between points on a relay panel. They taped the moth to a log entry and told others that they had “debugged” the system. Although the term bug was already common to describe kinks in a system, it was this event that many believe secured it as the popular term for a software defect.
A bug is simply an error or flaw in a software program that either causes it to do something it is not supposed to do or prevents it from doing something it is supposed to do. ...
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