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1MB = 8,388,608 Bits 1MB = 1,048,576 Bytes 1MB = 1024 Kilobytes
1 petabyte (PB) = 1,000,000,000,000,000 bytes = 1015 bytes. 1 megabyte (MB) = 1,000,000 bytes = 106 bytes. So 1 petabyte = 1,000,000,000 megabytes. A related unit, the pebibyte (PiB) is 1024 terabytes, but this is rarely used, if ever.
1,000,000,000,000,000
Computer memory is divided into various sizes. A kilobyte (KB) is approximately 1000 bytes (the exact number is 1024)
20 terabytes is 20,480 gigabytes.
I don't know how to measure computer storage space in any units other than those you've already used. I guess I could give the value in bytes. A petabyte is 250 bytes, or (roughly) 1015 bytes.
PB = PetaByte = 2 to the 50th = 1,125,899,906,842,624 bytes
1 MB = 1024 Kilo bytes 1 KB = 1024 bytes 2.5 Mb = 2.5 * 1024 * 1024 = 2,621,440 bytes
Going up in multiples of 1,024 bytes Kilobyte Megabyte Gigabyte Terabyte Petabyte Exabyte Zettabyte Yottabyte
* 1 byte = 8 bits * 1 kilobyte (K / Kb) = 2^10 bytes = 1,024 bytes * 1 megabyte (M / MB) = 2^20 bytes = 1,048,576 bytes * 1 gigabyte (G / GB) = 2^30 bytes = 1,073,741,824 bytes * 1 terabyte (T / TB) = 2^40 bytes = 1,099,511,627,776 bytes * 1 petabyte (P / PB) = 2^50 bytes = 1,125,899,906,842,624 bytes * 1 exabyte (E / EB) = 2^60 bytes = 1,152,921,504,606,846,976 bytes taken from beesky.com
1 PB = 1,000,000,000,000,000 B = 10005 B = 1015 bytes. 1,000,000 gigabytes http://en.wikipedia.org/wiki/Petabyte
Bytes of memory are chucks of code that help put a program or file together. The largest we have so far is petabyte then going down in size are: terabyte, gigabyte, megabyte, kilobyte, then just byte, then even smaller is a bit.