http://www.sciencekids.co.nz/sciencefacts/technology/computers.html
http://www.sciencekids.co.nz/sciencefacts/technology/cellphones.html
http://electronics.howstuffworks.com/telephone.htm
http://www.pbs.org/nerds/timeline/index.html
http://museumofcommunications.org/?page_id=31
http://www.museumphones.com/facts.html
http://www.obsoletecomputermuseum.org/
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