Mark I

Mark I or Mark 1 often refers to the first version of a weapon or military vehicle, and is sometimes used in a similar fashion in civilian product development. In some instances, the Arabic numeral "1" is substituted for the Roman numeral "I". "Mark", meaning "model" or "variant", can itself be abbreviated "Mk." It may refer to:

Military and weaponry

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Vehicles

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  • Mk I Mini (1959-1967); the original Austin Mini and Morris Mini-Minor from British Motor Corporation
  • British Railways Mark 1, the first standardised passenger-rated rolling stock (carriages or cars), introduced on British Railways in the 1950s
  • UTDC ICTS Mark I, rolling stock used by Vancouver SkyTrain rapid transit

Computers

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  • Harvard Mark I (1944), an early automatic digital computer made by IBM
  • Colossus Mark I (1944), a British computer used to crack military codes
  • Manchester Mark 1 (1949), an early Autocode computer
  • Ferranti Mark 1 (1951), an early computer based on the Manchester Mark 1
  • MARK 1 or Perceptron (1959-1960), a neural net computer designed by Frank Rosenblatt at Cornell University

Other technologies

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  • Mark I (detector), a particle detector at Stanford Linear Accelerator Center from 1973 to 1977
  • GE BWR Mark I boiling water reactor, a Generation II nuclear reactor
  • The Lovell Telescope, called the Mark I between 1961 and 1970, then the Mark IA between 1971 and 1987

Other uses

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See also

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