tecnologia fuentes: http://smartphoneavancetecnologico.blogspot.pe/p/historia-y-evolucion-del-smartphone.html http://www.areatecnologia.com/Que-es-un-smartphone.htm http://cellphoneshop.cc/caracteristicas-en-un-smartphone/ http://www.xataka.com/moviles/los-mejores-smartphones-de-2015-asi-son-y-compiten-entre-ellos