How Big is an Exabyte? 5 Exabytes = 37,000 new libraries

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Presentation transcript:

How Big is an Exabyte? 5 Exabytes = 37,000 new libraries Table 1.1: How Big is an Exabyte? Kilobyte (KB) 1,000 bytes OR 103bytes 2 Kilobytes: A Typewritten page. 100 Kilobytes: A low-resolution photograph. Megabyte (MB) 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. 10 Megabytes: A minute of high-fidelity sound. 100 Megabytes: 1 meter of shelved books. 500 Megabytes: A CD-ROM. Gigabyte (GB) 1,000,000,000 bytes OR 109 bytes 1 Gigabyte: a pickup truck filled with books. 20 Gigabytes: A good collection of the works of Beethoven. 100 Gigabytes: A library floor of academic journals. Terabyte (TB) 1,000,000,000,000 bytes OR 1012 bytes 1 Terabyte: 50000 trees made into paper and printed. 2 Terabytes: An academic research library. 10 Terabytes: The print collections of the U.S. Library of Congress. 400 Terabytes: National Climactic Data Center (NOAA) database. Petabyte (PB) 1,000,000,000,000,000 bytes OR 1015 bytes 1 Petabyte: 3 years of EOS data (2001). 2 Petabytes: All U.S. academic research libraries. 20 Petabytes: Production of hard-disk drives in 1995. 200 Petabytes: All printed material. Exabyte (EB) 1,000,000,000,000,000,000 bytes OR 1018 bytes 2 Exabytes: Total volume of information generated in 1999. 5 Exabytes: All words ever spoken by human beings. 5 Exabytes = 37,000 new libraries the size of the Library of Congress collections! Source: Many of these examples were taken from Roy Williams ?Data Powers of Ten? web page at Caltech.

Bernajean Porter…from Digitales presentation at AETC By 2010 information will double every 72 hours. 75 % of what we know was not there 25 years ago

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Ways to Learn Join a listserv-Edtech and read the posts http://www.h-net.org/lists/subscribe.cgi?list=EDTECH Post a question on the listserv and get answers Go to Atomic Learning and watch a training video http://www.atomiclearning.com/ Ask a student to learn a skill and teach you or the class Visit the Annenberg site and sign up for account. You can visit other teacher’s classrooms virtually. http://www.learner.org/ Use a United Streaming video in your classroom http://www.unitedstreaming.com Go to November Learning and learn about information literacy http://www.novemberlearning.com/Default.aspx?tabid=159&action=cat&lcl=2&parentID=56 Visit the Local library free tech classes Ask your tech specialist to model a lesson or find resources for you Try something new-a blog, podcast, or wiki!

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In 2005, only 1.2% of incoming college freshman planned to major in computer science, down from 3.7% in 2000 and at its lowest level since 1977.

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