FLAG DAY
\flˈaɡ dˈe͡ɪ], \flˈaɡ dˈeɪ], \f_l_ˈa_ɡ d_ˈeɪ]\
Definitions of FLAG DAY
- 2006 - WordNet 3.0
- 2011 - English Dictionary Database
- 1985 - The Free On-line Dictionary of Computing
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By DataStellar Co., Ltd
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A software change that is neither forward- norbackward-compatible, and which is costly to make and costly toreverse. E.g. "Can we install that without causing a flag dayfor all users?"This term has nothing to do with the use of the word flag tomean a variable that has two values. It came into use when amassive change was made to the Multics time-sharing systemto convert from the old ASCII code to the new one; this wasscheduled for Flag Day (a US holiday), June 14, 1966.See also backward combatability, lock-in.
By Denis Howe
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.