Changes

In April 2010, the first generation iPad was released.<ref>http://www.cnn.com/2010/TECH/03/05/ipad.apple.release/index.html</ref> The second generation iPad (called iPad 2) was released in March 2011.<ref>http://www.huffingtonpost.com/2011/03/10/ipad-2-release-day-2011_n_834017.html</ref> In March 2012, the third generation iPad was released,<ref>http://www.christianpost.com/news/ipad-3-release-event-unveils-the-new-ipad-comes-with-4g-lte-71019/</ref> followed by the fourth generation and first generation iPad Mini mini in November 2012.<ref>http://www.huffingtonpost.com/2012/10/23/new-apple-ipad-4th-generation_n_2006292.html</ref>