periodization, epoch can refer to:
Epoch (reference date)- A defining moment in the beginning of, or characteristic of, a distinctive historical periodor era.
* On the
geologic time scale, a span of time smaller than a "period" and larger than an "age".
* A phase in the development of the universe with distinctive properties during the
the Big Bang.
Epoch (astronomy)- a precise moment in time for which celestial coordinates or orbital elements are specified by international agreement, usually periodically reset to centennial and half-century dates. All other orbits calculations near or after the astronomical epoch are based on the epoch date.
* Many computer operating systems maintain
system timebased on some starting time called the epoch. For example, Unixand POSIXsystems count time as seconds since January 1 1970. See Unix time.
Epoch (magazine), the literary magazine of Cornell University.
Ha-Tsefirah(lit. Epoch), a Hebrew language newspaper published in 1862 and 1874-1931.
Epoch (film), a science fiction film directed by Matt Codd
Epoch Game Pocket Computer, an early hand-held game console
Epoch Co., the maker of the above and other computer games
Epoch (Chrono Trigger), a flying time machine in role-playing game "Chrono Trigger"
Epoch (DC Comics), a supervillain also known as the Lord of Time
Epoch (Marvel Comics), a cosmic entity in the Marvel Comics universe.
*Epoch Hunter, a boss in
World of Warcraft's Caverns of Time; Old Hillsbrad Foothills.
The Epoch Times, a privately owned Falun Gong-linked newspaper
Epoch operating systemwas a European research project in the 1990s to build an operating system based on the ChorusOSoperating system kernel.
* A step in the training process of an
artificial neural network
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