Sources
http://dictionary.reference.com/browse/smartphone?s=t
http://answers.ask.com/Computers/History/how_has_technology_changed_our_lives
www.dictionary.com
www.ask.com
http://www.dummies.com/how-to/content/what-is-siri.html
http://news.cnet.com/8301-1035_3-57521252-94/can-apples-app-store-maintain-its-lead-over-google-play/
My own knowledge
http://answers.ask.com/Computers/History/how_has_technology_changed_our_lives
www.dictionary.com
www.ask.com
http://www.dummies.com/how-to/content/what-is-siri.html
http://news.cnet.com/8301-1035_3-57521252-94/can-apples-app-store-maintain-its-lead-over-google-play/
My own knowledge