How many bits make up one byte?

A byte is a standard unit of digital information that consists of 8 bits. Since each bit can have a value of either 0 or 1, a single byte can represent 256 different combinations (2⁸). This allows computers to store... Read More

1 BASIC COMPUTER MCQS

How many bits make up one byte?

  • 8 bits
  • 6 bits
  • 4 bits
  • 2 bits
Correct Answer: A. 8 bits

Detailed Explanation

A byte is a standard unit of digital information that consists of 8 bits. Since each bit can have a value of either 0 or 1, a single byte can represent 256 different combinations (2⁸). This allows computers to store letters, numbers, symbols, and other types of data efficiently. Therefore, Option A (8 bits) is the correct answer.


The term bit is short for binary digit and represents the smallest unit of data in a computer. A bit can store only one of two possible values: 0 or 1. While a single bit carries very little information, combining eight bits into one byte provides enough capacity to represent a single character, such as a letter or a number, in many character encoding systems.


Key Point:



  • 1 Byte = 8 Bits. Remember this basic relationship because it forms the foundation of data storage and memory measurements. Larger units are also based on bytes, such as 1 Kilobyte (KB) = 1,024 Bytes, 1 Megabyte (MB) = 1,024 KB, and 1 Gigabyte (GB) = 1,024 MB. 

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