Bit

A bit, also known as a Shannon, is the basic unit of information in computing and digital communications. A bit can have only one of two values, and may therefore be physically implemented with a two-state device. These values are most commonly represented as either a 0or1. The term bit is a portmanteau of binary digit.

The two values can also be interpreted as logical values (true/false, yes/no), algebraic signs (+/), activation states (on/off), or any other two-valued attribute. The correspondence between these values and the physical states of the underlying storage or device is a matter of convention, and different assignments may be used even within the same device or program. The length of a binary number may be referred to as its bit-length.

In information theory, one bit is typically defined as the uncertainty of a binary random variable that is 0 or 1 with equal probability, or the information that is gained when the value of such a variable becomes known.

In quantum computing, a quantum bit or qubit is a quantum system that can exist in superposition of two classical (i.e., non-quantum) bit values.

Bit (disambiguation)

A bit is a unit of information storage on a computer.

Bit or BIT may also refer to:

Tools and engineering

  • Drill bit, a cutting tool used to create cylindrical holes
  • Screwdriver bit
  • Tool bit, used for turning work in lathes
  • Bit (key), the part of a key which engages the locking mechanism
  • Bit (horse), an object placed in a horse's mouth
  • Arts and entertainment

  • Unit of action or bit, in acting
  • Bit part, a minor role
  • Bit, material from a standup comedian's repertoire
  • "Better in Time", a song by Leona Lewis
  • Babes in Toyland (band), an American grunge band
  • Bit, in the list of Tron characters
  • Equestrian Bit, a system of currency used in Equestria, the main setting of My Little Pony: Friendship is Magic
  • Buried in Time, a computer game
  • Organisations

  • Bit Corporation, a video game company
  • Bipolar Integrated Technology, a former American semiconductor company
  • BIT Teatergarasjen, Norwegian theatre and dance company
  • Education

  • Bearys Institute of Technology, a private technical co-educational college, Mangalore, India
  • Bit (horse)

    A bit is a type of horse tack used in equestrian activities, usually made of metal or a synthetic material, and is placed in the mouth of a horse or other equid and assists a rider in communicating with the animal. It rests on the bars of the mouth in an interdental region where there are no teeth. It is held on a horse's head by means of a bridle and has reins attached for use by a rider.

    Basic types

    Although there are hundreds of design variations, the basic families of bits are defined by the way in which they use or do not use leverage. They include:

  • Direct pressure bits without leverage:
  • Snaffle bit: Uses a bit ring at the bit mouthpiece to apply direct pressure on the bars, tongue and corner of the mouth.
  • Leverage bits:
    • Curb bit: A bit that uses a type of lever called a shank that puts pressure not only on the mouth, but also on the poll and chin groove.
    • Pelham bit: A single curb bit with two sets of reins attached to rings at the mouthpiece and end of the shank. Partly combines snaffle and curb pressure.
    • Kimblewick or Kimberwicke: A hybrid design that uses a slight amount of mild curb leverage on a bit ring by use of set rein placement on the ring.
  • Milky (pudding)

    Milky (Hebrew: מילקי) is a dairy pudding produced in Israel by the Strauss corporation.

    Milky is claimed to be the most successful dairy product on the Israeli market since its debut in 1980. Milky is sold in small containers with chocolate pudding on the bottom and whipped cream on the top. Milky was identical, in its original version, to a dessert sold by Groupe Danone in Germany as "Dany Sahne".

    The company also produces מילקי הפוך (Milky Upside Down), with vanilla pudding and chocolate cream, as well as a vanilla-flavored Milky, a Milky with sprinkles on top, and an "aerated" version.

    In 1986 Strauss premiered Milky's first video commercial to Israeli moviegoers entitled "Battle of the Milky." The commercial became a big hit and led to two sequels, "Battle of the Milky 2" and "Battle of the Milky 3." The actresses in the commercials were known as "Milky girls" and became an icon in their own right, Sandi Bar, Hila Nachshon or Bar Refaeli among them. In 2003, a 22-year-old Technion student, Elaad Yair, discovered that whipped cream used in Milky contained a rennet-based gelatin. Vegetarians and those who keep kosher complained, resulting in the company's announcement that it would henceforth only use vegetable-based gelatin.

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