|40||Sloan Digital Sky Survey Raw Data Volume||Survey to start in 1999, will finish collecting data in 2004.||7|
|24||Walmart's item information||2 NCR WorldMark 5100M "massively parallel processing server"1||1|
|20||Contents of Library of Congress||not digitized. Source 2 says size is 10.||11|
|12||Two Micron All-Sky Survey (2MASS) Raw Data Volume||Survey in progress, will finish collecting data in 2000.||3|
|6||Entire indexable WWW in February 1999||800 million pages containing "more than" 6 trillion characters. Size was ~3 in December 1997 and ~2 in January-February 1997||8,10,11|
|3.5||Uncompressed images of Earth distributed over the Web by Microsoft's TerraServer||Database Size: 1.01
Size of uncompressed images: 3.5 TeraBytes
Database rows: 173.6 million
|~1||Near-Earth Asteroid Tracking (NEAT) Project||Growing at ~1 TB/year after 6/1998||9|
|0.25||Hipparcos Satellite Raw Data||5|
|0.1?||Microlensing Raw Data||6 billion brightness measurements||6|
Claim is that medical imaging and banks that digitize and store images of millions of checks is in the petabyte range (PC Mag, 5/6/97, 9.). Also, large physics experiments at particle accelerators may also be this large.
|8.6||2MASS Image Atlas||Survey in Progress; will release all data in 2001|
|1.0||Sloan Digital Sky Survey Imaging Data||Survey to start in 1999, will finish collecting data in 2004.||7|
|0.3||2MASS Point Source Catalog||Survey in Progress; will release all data in 2001|
|0.25||Sloan Digital Sky Survey Catalogs||Survey to start in 1999, will finish collecting data in 2004.||7|
|0.2||Hipparcos/Tycho Star Catalog||5|
|0.003||Human Genome Project||4|
Need to add Monet's catalog, Guide Star Catalog, Hubble raw data volume, IRAS, MSX.
20,000 four-drawer filing cabinets filled with typewritten pages
Twice the number of all transactions ever made on the New York Stock Exchange
Half of one page in a novel.
One character stored as ASCII
Source for units: "Guide for Metric Practice", Physics Today, 8/96, BG16.
Copyright © 1996-1999 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
Comments and feedback: Tom Chester
Last update: 8 July 1999.