First bug

During her work with Mark II, Hopper was credited with coining the term "bug" in reference to a glitch in the machinery. This story is apparently a bit of computer folk-lore, however, as the term had already been used by Harvard personnel for several years to describe problems with their computers. It is the case that she and her team of programmers did find a moth which flew through an open window and into one of Mark II's relays, temporarily shutting down the system. The moth was removed and pasted into a logbook. At that time the use of the word "bug" referred to problems with the hardware. In the mid 1950's, Hopper extended the meaning of the term "debug" to include removing programming errors. <bib></bib>

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