12. http://www.enotes.com/history-fact-finder/science-invention/who-invented-first-personal- computer http://www.enotes.com/history-fact-finder/science-invention/who-invented-first-personal- computer http://inventors.about.com/od/estartinventions/a/Eniac.htm http://inventors.about.com/library/inventors/blhollerith.htm http://inventors.about.com/od/bstartinventors/a/Charles_Babbage.htm http://www.jamesshuggins.com/h/tek1/first_computer http://www.tech-faq.com/who-invented-the-internet.html_bug. http://inventors.about.com/library/blcoindex.htm