There is kilo, mega, giga, and terrabytes. What comes after that?

Petabyte, exabyte, zettabyte, yottabyte for powers of 1000 (1000 TB, 1000PB, 1000EB, 1000ZB)

pebibyte, exbibyte, zebibyte, yobiobyte for powers of 1024 (1024TiB, 1024PiB, 1024EiB, 1024ZiB)

A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system.

· 1 Bit = Binary Digit

· 8 Bits = 1 Byte

· 1024 Bytes = 1 Kilobyte

· 1024 Kilobytes = 1 Megabyte

· 1024 Megabytes = 1 Gigabyte

· 1024 Gigabytes = 1 Terabyte

· 1024 Terabytes = 1 Petabyte

· 1024 Petabytes = 1 Exabyte

· 1024 Exabytes = 1 Zettabyte

· 1024 Zettabytes = 1 Yottabyte

· 1024 Yottabytes = 1 Brontobyte

· 1024 Brontobytes = 1 Geopbyte

petabyte = 1015 bytes = 1000 terabytes

exabyte = 1018 bytes

zettabyte = 1021 bytes

yottabyte = 1024 bytes

For values based on 1024 rather than 1000:

tebibyte = 240 bytes = 1024 gibibytes (giga-binary-bytes)

pebibyte = 250 bytes

exbibyte = 260 bytes

zebibyte = 270 bytes

yobibyte = 280 bytes