What do you mean when you say gigabytes, megabytes, GB, and MB?

A gigabyte (GB) is a memory size from the computer sector and is used as an indication of the size of hard drives, memory cards, USB sticks or RAM modules: "My PC has 4 GB RAM" or "My new USB stick has 64 GB memory ". While a photo or a music file only takes up a few megabytes of storage space, films often require more than a gigabyte of storage space: 4.7 GB fit on a blank DVD to burn yourself. How many megabytes this corresponds to is shown in the list below.

A gigabyte (also called a gigabyte or abbreviated GB) consists of 1024 megabytes (MB) or 1,048,576 kilobytes (KB).

  • 1 bit is the smallest data unit
  • 1 byte = 8 bit
  • 1 kilobyte (KB) = 1024 bytes
  • 1 megabyte (MB) = 1024 kilobytes (KB) = 1,048,576 bytes
  • 1 gigabyte (GB) = 1024 megabytes (MB) = 1,048,576 kilobytes (KB) = 1,073,741,824 bytes
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