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Bytes
A byte is the basic unit of digital storage, made up of 8 bits, historically enough to represent one character of text.
Kilobytes
A kilobyte (KB) equals 1,024 bytes in the traditional binary convention still used by most operating systems and everyday tools.
Megabytes
A megabyte (MB) equals 1,024 kilobytes (about 1 million bytes), commonly used to measure file sizes like photos and documents.
Gigabytes
A gigabyte (GB) equals 1,024 megabytes (about 1 billion bytes), commonly used to measure storage capacity, video files, and data plans.
Terabytes
A terabyte (TB) equals 1,024 gigabytes (about 1 trillion bytes), commonly used to measure hard drive and cloud storage capacity.