This history focuses on communication devices which connect wirelessly to the public switched telephone network.The first mobile telephones were barely portable compared to today's compact hand-held devices. Along with the process of developing more portable technology, drastic changes have taken place in the networking of wireless communication and the prevalence of its use.In the past just few people use cell phone
Cell phone nowaday is one of the most popular invention in everyone life .We can use it to call anyone by just touch one button and we can chat with 10 people in a minute by the new social media programs such as Whatsapp,Twitter and Snapchat,So the cell phone improve our community and made our world small.
On the other hand this invention has a bad side effect .We became more lazy and less connected with the person who sit behind us.We must avoid the bad effect and interest with the benefits of the cell phone .
*we toke some information from https://en.wikipedia.org/wiki/History_of_mobile_phones