ISTQB Certified Software Test Engineer

Wednesday, August 3, 2011

Who Coined the term "BUG" ?

Every software tester is familiar with the word bug.They Used this word very often.
Who disocovered it?In what application they foound this?
It was very difficult to answer......:)

The term bug was coind by "Grace Hopper" for the first time in 1945.
In 1945, Grace Murray Hopper was working on the Harvard University Mark II Aiken Relay Calculator (a primitive computer).
On the 9th of September, 1945, when the machine was experiencing problems, an investigation showed that there was a moth trapped between the points of Relay #70, in Panel F.


  1. What is a *Bug* in your perspective, this is where I got confused.... Can you please clarify?

  2. *Bug* is a term that we use ,when some thing goes wrong in our application,like if some mismatch with expected and actual output