Archive for the ‘First Computer BUG’ Category

All of us working in IT, for us the word “BUG” is very common. That to being a test engineers we are very familiar with bug ūüôā & its severity / priority.

For Developers some time it will be night mare, but we enjoy.


Here i am going to tell you the word BUG came to IT world….!!!!!!!!!!!!!!


A¬†software bug¬†is the common term used to describe an error, flaw, mistake,¬†failure, or¬†fault¬†in a computer program or¬†system¬†that produces an incorrect or unexpected result, or causes it to behave in unintended ways. 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. A program that contains a large number of bugs, and/or bugs that seriously interfere with its functionality, is said to be¬†buggy. Reports detailing bugs in a program are commonly known as bug reports, fault reports, problem reports, trouble reports, change requests, and so forth.


Here is the first bug photo……


The First “Computer Bug”¬†Moth found trapped between points at Relay # 70, Panel F, of the Mark II Aiken Relay Calculator while it was being tested at Harvard University, 9 September 1947.

The operators affixed the moth to the computer log, with the entry: “First actual case of bug being found”.

They put out the word that they had “debugged” the machine, thus introducing the term “debugging a computer program”.

 In 1988, the log, with the moth still taped by the entry, was in the Naval Surface Warfare Center Computer Museum at Dahlgren, Virginia, which erroneously dated it 9 September 1945.

The Smithsonian Institute’s National Museum of American History and other sources have the correct date of 9 September¬†1947¬†(Object ID: 1994.0191.01). The Harvard Mark II computer was not complete until the summer of 1947.