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What is Bit?

What is Bit: Here, we are going to learn about the Bit – what is Bit in Computer Science, what is the meaning of a Bit?
Submitted by Anushree Goswami, on April 27, 2020

Bit: Binary Digit

A Bit is an abbreviation of "Binary Digit".

It is the smallest basic unit of information, which is used to measure data of system in computing and digital communications. It consists of the value of true/false and also used for storing the data of the system as information. Each bit is typically used to store information of a data of system in the form of a value of 0 and 1 and also used to execute directives in associations of bytes.

The digits of binary numbers are a symbol of a logical state, comprising simply one of two values.

These two values are for the most part generally signified as either:

  • 0 or 1
  • true/false
  • yes/no
  • +/-
  • on/off


At the beginning of 1947, John W. Tukey first time used the term "Bit" in a Bell Labs memo in which he diminished "binary information digit" to basically "bit".

Various Bit information

In a binary number of systems, storing a distinct character in the form of a binary digit of a data of computer needs eight bits. The number of individual arrangements formed by one byte or eight bits is 256, which can be numbers, letters, symbols, and characters. In the formation of a 32-bit binary digit, it involves four eight-bit bytes. The length of a binary number is alluded to as a bit length.

There are a variety of units of information that hold multiples of bits, comprise:

  • Byte = 8 bits
  • Kilobit = 1,000 bits
  • Megabit = 1 million bits
  • Gigabit = 1 billion bits

In the system of computers, the process generally controls bits in the collection of a permanent size, which was typically termed as "words". After the year of 1999, trade individual or server computers have a term size of 32 or 64 bits.

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