- Byte: It has 8 bits, it means a byte can store 8 letters
- Kilo Byte (KB): 1 KB = 1,024 Byte, It can store small paragraph Image or a low quality small Image. In the earlier times of computing, A floppy disk has a storage of 360kB, in which people used to play games, write documents and run businesses \
- Mega Byte (MB): 1 MB = 1,024 KB = 1 Million Byte. It can hold about 400 pages of plain text
- Giga Byte (GB): 1 GB = 1,024 MB = 1 Billion Byte, It can hold about 1,000 novels
- Tera Byte (TB): 1 TB = 1,024 GB = 1 Trillion Bytes, It can hold some millions of documents
- Peta Bytes (PB) 1 PB = 1,024 TB = 1 Quadrillion Bytes, that enough to store 13 years of non-stop HD video. It can hold up to 500 Billion Pages of text
- Exa Byte (EB): 1 EB = 1,024 PB = 1 Billion GB. It can hold up to a Trillion Books
- Zeta Byte (ZB): 1 ZB = 1,024 EB = 1 Trillion GB. In 2020 the whole world hold around 4 ZB of data. It’s used when we talk about world wide data
- Yotta Byte (YB): 1 YB = 1,024 YB = 1 Septillion Bytes. It soo big, that we don’t have storage to store it(as per 2025). One Yotta Byte can store every possible data created by the mankind till date with space left over