Meaning of BUG in English

BUG

An unintentional error in software or hardware . For software bugs the application may stop altogether or produce unexpected results. There are various stories of where the term originated – the most famous from about 50 years ago credited to a moth that was squashed between components of an ancient computer.

English glossary of Internet and PC terminology.      Английский глоссарий Интернет и ПК терминологии.