la evolución de los teléfonos móviles By adromero@iegabo.edu.co Period: 1984 to 1992 1984 Period: 1992 to 1996 1992 Period: 1996 to 2001 1996 Period: 2001 to 2005 2001 Period: 2005 to 2011 2005 Period: 2011 to 2013 2011 Period: 2013 to 2018 2013 Period: 2018 to 2019 2018