What is the smallest unit of data in a computer?

The correct answer is Bit, which stands for Binary Digit. It is the smallest unit of data in a computer system. A bit can only store one of two values: either a 0 or a 1. These two values represent binary states, which computers use to perform all operations. Whether it's a simple text file, an image, or software, everything in a computer is stored and processed in bits.

Bits combine to form larger data units. For example:

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  4 bits = 1 Nibble

  
  


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  8 bits = 1 Byte

  
  


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  1024 Bytes = 1 Kilobyte (KB)

  
  Even though Byte, Nibble, and KB are larger units used in data storage and memory, they are all made from bits. That’s why Bit is the most fundamental unit in digital computing. Every single character or instruction a computer processes begins as a string of bits.
  

  Options like KB, Byte, and Nibble refer to larger units, making Bit the correct answer. Understanding bits is essential for grasping how digital systems and computers operate from the ground up.