David Dávila Ruiz Joel Armengol Rubio

B – 51

• Introduction

• First Generation (1G)

• Second Generation (2G)

• Second Generation (2.5G)

• Third Generation (3G)

• Fourth Generation (4)

• Late 40s

• Very large

• Heavy

• 1981 • NMT 450

• 1990

•GSM

• SMS

•MMS

• Internet

• GPRS

• Downloading files

They are

currently

the best

mobile

phones