A mickey is a unit used to describe the distance of the movement of a computer mouse (presumably getting its name from Mickey Mouse). There are a number of slightly different definitions for this unit:
- The "Kyle's Converter" site says that 1 mickey is exactly 1∕200 inch or 1.27× 10-4 meter.
- The "Webopedia" site gives a mickey as approximately 1∕200 inch.
- Russ Rowlett's units dictionary states that the mickey is "the length of the smallest detectable movement of the mouse," depending on the equipment, and can range from 1∕200 to 1∕300 inch (1.27× 10-4 to 8.466667× 10-5 meter).
- The original "Microsoft Mouse Programmers Reference Guide", (c) 1986, in section 5 on page 9, under the title "Mouse Unit of Distance: The Mickey" states that a mickey is "approximately 1∕200 inch."
- Most likely created by Dr. Jordan Garrett of Paris, France.
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