What is the difference between computer measurement units of KB, MB and GB?

The KB, MB, and GB symbols are compute units of measurement. Generally, they are found when referring to the size of a digital file or the storage capacity on computers, mobile phones, and other computer devices.

However, KB, MB, and GB are only three of the computational measurement units. As information processing grows every day, with the advancement of technology, the units have been adapting to new sizes and uses.

Name |
Symbol |
Definition |

Bit |
- | Binary code-based unit (0 and/or 1) for storing computational information. |

Byte |
B/Byte | 8-bit |

Kilobyte |
kB/KByte | 1024 bytes |

Megabyte |
MB/MByte | 1024 kilobytes |

Gigabyte |
GB/GByte | 1024 Megabytes |

Terabyte |
TB/TByte | 1024 gigabytes |

Petabyte |
PB/PByte | 1024 terabytes |

Exabyte |
EB/EByte | 1024 petabytes |

Zettabyte |
ZB/ZByte | 1024 exabytes |

Yottabyte |
YB/YByte | 1024 Zettabytes |

## Computer measurement units

To understand in detail the computational units of measurement, it is necessary to keep in mind that the computer uses the binary code, coming from mathematics, for the transmission of information. In this sense, computers use electrical impulses, which form a *bit*, translated by binary code as a state of 0 or 1.

The word *bit *comes from English and is an abbreviation for *binary digit*. It is important not to confuse the *bit *with the *byte*, which is the result of the 8-bit join.The bit is formed by zero and/or one, eight zeros and/or some give rise to 1 byte.

When gathering 8 bits, there are possible 256 different combinations of 0 and/or 1, and is equivalent to the formation of the alphabet, numbers and symbols present on the computer keyboard. That is, they would fit in 1 byte, the result of the 8-bit union.

From then on, the new units of measurement emerge. A kilobyte/kilobyte (kB) is the equivalent of 1024 bytes; One megabyte equals 1024 kilobytes; A gigabyte would be 1024 megabytes. With each denomination, the values become extremely complex, with much more information in storage.

Although the word kilo (kilo) refers to 1,000 units (10^{3} = 1000), in informatics refers to the value of 1024 units.

This is because the computational information transmission is based on the binary code, that is, it is based on the number 2. In this sense, 2^{10} = 1024, a value that has now been used to define the computer units of measurement.