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  2. Lottery wheeling - Wikipedia

    en.wikipedia.org/wiki/Lottery_wheeling

    From a mathematical standpoint, 'wheeling' has no impact on the expected value of any given ticket. However, playing a lottery wheel impacts the win distribution over time—it gives a steadier stream of wins compared to a same-sized collection of tickets with numbers chosen at random. As an extreme example, consider a pick-6, 49 number lottery.

  3. Code wheel - Wikipedia

    en.wikipedia.org/wiki/Code_wheel

    A code wheel is a type of copy protection used on older computer games, often those published in the late 1980s and early 1990s.It evolved from the original "manual protection" system in which the program would require the user to enter a specific word from the manual before the game would start up or continue beyond a certain point.

  4. Throbber - Wikipedia

    en.wikipedia.org/wiki/Throbber

    A throbber animation like that seen on many websites when a blocking action is being performed in the background. A throbber, also known as a loading icon, is an animated graphical control element used to show that a computer program is performing an action in the background (such as downloading content, conducting intensive calculations or communicating with an external device).

  5. Wheel (computing) - Wikipedia

    en.wikipedia.org/wiki/Wheel_(computing)

    The phrase wheel war, which originated at Stanford University, [8] is a term used in computer culture, first documented in the 1983 version of The Jargon File.A 'wheel war' was a user conflict in a multi-user (see also: multiseat) computer system, in which students with administrative privileges would attempt to lock each other out of a university's computer system, sometimes causing ...

  6. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    The name comes from their use with rotary encoders, where a number of tracks are being sensed by contacts, resulting for each in an output of 0 or 1. To reduce noise due to different contacts not switching at exactly the same moment in time, one preferably sets up the tracks so that the data output by the contacts are in Gray code.

  7. Spinning pinwheel - Wikipedia

    en.wikipedia.org/wiki/Spinning_pinwheel

    Spinning Wait Cursor as seen in OS X El Capitan. The spinning pinwheel is a type of progress indicator and a variation of the mouse pointer used in Apple's macOS to indicate that an application is busy.

  8. Spinning wheel - Wikipedia

    en.wikipedia.org/wiki/Spinning_wheel

    the great wheel also known as walking wheel or wool wheel for rapid long draw spinning of woolen-spun yarns; the flax wheel, which is a double-drive wheel used with a distaff for spinning flax fibres for making linen; saxony and upright wheels, all-purpose treadle driven wheels used to spin both woolen and worsted-spun yarns; and; the charkha ...

  9. Random number generation - Wikipedia

    en.wikipedia.org/wiki/Random_number_generation

    Dice are an example of a mechanical hardware random number generator. When a cubical die is rolled, a random number from 1 to 6 is obtained. Random number generation is a process by which, often by means of a random number generator (RNG), a sequence of numbers or symbols is generated that cannot be reasonably predicted better than by random chance.