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Baffle Ball, the first mechanical pinball game, was advertised as being "free of bugs" in 1931. [4] Problems with military gear during World War II were referred to as bugs (or glitches). [5] In the 1940 film, Flight Command, a defect in a piece of direction-finding gear is called a bug. [citation needed]
A software bug is a design defect in computer software. A computer program with many or serious bugs may be described as buggy . The effects of a software bug range from minor (such as a misspelled word in the user interface ) to severe (such as frequent crashing ).
A hardware bug is a bug in computer hardware.It is the hardware counterpart of software bug, a defect in software.A bug is different from a glitch which describes an undesirable behavior as more quick, transient and repeated than constant, and different from a quirk which is a behavior that may be considered useful even though not intentionally designed.
In my opinion, there is a difference between defects and bugs. A defect is a failure in a system to meet certain requirements (whether they are non-existing in a system, or bugged and don't perform like they should), while a bug is more specific the failure of existing features, and can't be used to describe the absence of a feature.
In quality management, a nonconformity (sometimes referred to as a non conformance or nonconformance or defect) is a deviation from a specification, a standard, or an expectation. Nonconformities or nonconformance can be classified in seriousness multiple ways, though a typical classification scheme may have three to four levels, including ...
A glitch, which is slight and often temporary, differs from a more serious bug which is a genuine functionality-breaking problem. Alex Pieschel, writing for Arcade Review , said: " 'bug' is often cast as the weightier and more blameworthy pejorative, while 'glitch' suggests something more mysterious and unknowable inflicted by surprise inputs ...
Software testing typically includes handling software bugs – a defect in the code that causes an undesirable result. [11]: 31 Bugs generally slow testing progress and involve programmer assistance to debug and fix. Not all defects cause a failure. For example, a defect in dead code will not be considered a failure.
The DAO bug. On June 17, 2016, the DAO was subjected to an attack exploiting a combination of vulnerabilities, including the one concerning recursive calls, that resulted in the transfer of 3.6 million Ether – around a third of the 11.5 million Ether that had been committed to The DAO – valued at the time at around $50M.