Different sizes of data are:

1. Bit
2. Nibble – 4 bits
3. Byte – 8 bits
4. Kilobyte – 1024 bytes
5. Megabyte – 1024 kilobytes
6. Gigabyte – 1024 megabytes
7. Terrabyte – 1024 gigabytes
8. Petabyte – 1024 terrabytes
9. Exabyte – 1024 petabytes
10. Zettabyte – 1024 exabytes
11. Yottabyte – 1024 yottabytes