There are various memory sizes in IT that are used for different purposes.
- Byte: A byte is the smallest unit of digital memory and corresponds to eight bits. A byte can assume a value from 0 to 255.Kilobyte (KB): One kilobyte is equal to 1,024 bytes.
- Megabyte (MB): One megabyte is equal to 1,024 kilobytes or 1,048,576 bytes.
- Gigabyte (GB): One gigabyte is equal to 1,024 megabytes or 1,073,741,824 bytes.
- Terabyte (TB): One terabyte is equal to 1,024 gigabytes or 1,099,511,627,776 bytes.
- Petabyte (PB): A petabyte is equal to 1,024 terabytes or 1,125,899,906,842,624 bytes.
There are also even larger storage sizes or units such as the exabyte (EB), the zettabyte (ZB), and the yottabyte (YB), but these are usually only used in very large data centers or in scientific research.