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