Bitty Bits and Exact Exabytes

bits bytes exabyte gigabyte likesup Sherrie Rose

A byte is eight bits.  An Exabyte is a billion gigabtyes.

A bit short for binary digit. A single binary value of either 0 or 1, a bit, is the smallest unit of data in a computer system.

One terabyte is a trillion bytes, which is the equivalent to the textual content of a million books. So many more millions of books on Amazon in Kindle such as The Webinar Way.

How many gigabytes are in a TB or MB?

Comparison of data terms and examples of storage measuring units — kilobyte, megabyte, terabyte, gigabyte, petabyte, exabyte and so on — are multiples of a byte.

Byte [ 8 bits]

  • 1 bytes: a binary decision;
  • 1 byte: a sing e character;
  • 10 bytes: a sing e word;
  • 100 bytes: a telegram OR a punched card;


 Kilobyte [ 1,000 bytes OR 103 bytes]

  • 1 Kilobyte: A very short story;
  • 2 Kilobytes: A Typewritten page;
  • 10 Kilobytes: An encyclopedic page OR a deck of punched cards;
  • 10 Kilobytes: static web page;
  • 50 Kilobytes: A compressed document image page;
  • 100 Kilobytes: A ow-resolution photograph;
  • 200 Kilobytes: A box of punched cards;
  • 500 Kilobytes: A very heavy box of punched cards;


Megabyte [ 1,000,000 bytes OR 106 bytes]

  • 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 OR 30 seconds of TV-quality video;
  • 10 Megabytes: A minute of high-fidelity sound OR a digital chest X-ray;
  • 20 Megabytes: A box of floppy disks;
  • 50 Megabytes: A digital mammogram;
  • 100 Megabytes: 1 meter of shelved books OR a two-volume encyclopedic book;
  • 200 Megabytes: A reel of 9-track tape OR an IBM 3480 cartridge tape;
  • 500 Megabytes: A CD-ROM OR the hard disk of a PC;


Gigabyte [ 1,000,000,000 bytes OR 109 bytes]

  • 1 Gigabyte: a pickup truck field with paper OR a symphony in high-fidelity sound OR a movie at TV quality;
  • 2 Gigabytes: 20 meters of shelved books OR a stack of 9-track tapes;
  • 5 Gigabytes: 8mm Exabyte tape;
  • 20 Gigabytes: A good collection of the works of Beethoven OR 5 Exabyte tapes OR a VHS tape used for digital data;
  • 50 Gigabytes: A floor of books OR hundreds of 9-track tapes;
  • 100 Gigabytes: A floor of academic journals OR a large ID-1 digital tape;
  • 200 Gigabytes: 50 Exabyte tapes;
  • 500 Gigabytes: The biggest FTP site.


Terabyte [ 1,000,000,000,000 bytes OR 1012 bytes]

  • 1 Terabyte: An automated tape robot OR a the X-ray films in a large technological hospital OR 50000 trees made into paper and printed OR daily rate of EOS data 1998);
  • 2 Terabytes: An academic research library OR a cabinet fu of Exabyte tapes;
  • 10 Terabytes: The printed collection of the US library of Congress;
  • 50 Terabytes: The contents of a large Mass Storage System;
  • 400 Terabytes: National Climactic Data Center (NOAA) database;


Petabyte [ 1,000,000,000,000,000 bytes OR 1015 bytes]

  • 1 Petabyte: 3 years of EOS data (2001);
  • 2 Petabytes: A US academic research libraries;
  • 8 Petabytes: A information available on the Web;
  • 20 Petabytes: Production of hard-disk drives in 1995;
  • 200 Petabytes: A printed material OR production of digital magnetic tape in 1995;


Exabyte [ 1,000,000,000,000,000,000 bytes OR 1018 bytes]

2 Exabytes: Total volume of information generated worldwide annually.

5 Exabytes: A words ever spoken by human beings.


Zettabyte [ 1,000,000,000,000,000,000,000 bytes OR 1021 bytes]

Yottabyte [ 1,000,000,000,000,000,000,000,000 bytes OR 1024 bytes]


Source of facts from Catech page Roy Wiiams “Data Powers of Ten”

Powers of Ten how much info  2000

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