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Line 4: − + − '''Cybersecurity''' (or information technology security) is a field which works to prevent unauthorized access or modification to computers, networks, programs and information. In short, it is the security of Cyberspace.+ − + − − Cybersecurity is vital to businesses and governments for a variety of reasons. It is also important for many individuals. This field produces and upkeeps data encryption, firewalls,<ref>http://www.umuc.edu/cybersecurity/about/cybersecurity-basics.cfm#</ref>
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Personal Notes: need to parse 20,000b+
Personal Notes: need to parse 20,000b+
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'''needs to be re-thought. This is going in circles'''
The '''Pencil eraser''' is an item which is now considered common. They are on the end of almost every American pencil, and can also be bought separately for very cheap prices. However, they should not be considered uninteresting simply because of their popularity.
==History==
The idea of removing mistakes or other unneeded text from writing is nothing new. In the time of the Roman Empire, wax tablet were used for writing on, and palimpsests were used to remove unwanted text.<ref name="TheAtlantic">http://www.theatlantic.com/technology/archive/2013/08/10-things-you-probably-did-not-know-about-eraser-technology/279028</ref> When [[Pencil]]s were invented, they proved to be useful items without erasers. It was found that white bread could be used for this purpose, however, so this became the accepted practice until the 1770s when erasure was needed.<ref>http://chemistry.about.com/od/chemistryfaqs/f/eraser.htm</ref>
==Need==