The following list is a collection of estimates of the quantities of data contained by the various media.


· Bits

· 1 bit: A binary decision

· Bytes (8 Bits)

· 1 byte: A single character

· 10 bytes: A single word

· 100 bytes: A sentence

· Kilobyte (1024 Bytes)

· 1 Kilobyte: A page of text

· 10 Kilobytes: The size of this web page

· 100 Kilobytes: A compressed computer image OR a long essay

· Megabyte (1024 Kilobyte)

· 1 Megabyte: A small novel OR A 3.5 inch floppy disk

· 2 Megabytes: A high resolution photograph

· 5 Megabytes: The complete works of Shakespeare

· 10 Megabytes: A minute of high-fidelity sound

· 100 Megabytes: 1 meter of shelved books

· 500 Megabytes: A CD-ROM

· Gigabyte (1024 Megabyte)

· 1 Gigabyte: A symphony in high-fidelity sound OR A movie at TV quality

· 2 Gigabytes: 20 meters of shelved books

· 10 Gigabytes: A good collection of the works of Beethoven

· 20 Gigabytes: A VHS tape used for digital data

· 50 Gigabytes: A floor of books

· 100 Gigabytes: A floor of academic journals

· Terabyte (1024 Gigabyte)

· 1 Terabyte: 50000 trees made into paper and printed

· 2 Terabytes: An academic research library

· 10 Terabytes: The printed collection of the US Library of Congress

· 100 Terabytes: The entire internet

· Petabyte (1024 Terabyte)

· 1 Petabyte: 3 years of EOS data

· 10 Petabytes: All US academic research libraries

· 100 Petabytes: All printed material

· Exabyte (1024 Petabyte)

· 1 Exabytes: All words ever spoken by human beings.

· Zettabyte (1024 Exabyte)

· Yottabyte (1024 Zettabyte)

· 1 Yottabyte: Everything that there is

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