Page 107 - Are You Future Ready?
P. 107
Chapter One - To Know the Present
Through the Past
1.9
Mobile
communication
Past
The world's first mobile phone communication took
place on April 3, 1973. Martin Cooper, an engineer at
Motorola, United States, used a cellphone prototype to
call Joel Engel, an engineer at the Bell System (competitor 105
of Motorola) in front of a reporter. The model used was
a DynaTAC. "DynaTAC" is the abbreviation of Dynamic
Adaptive Total Area Coverage. Cooper became the
"inventor of the cellphone".
However, in order to mass-produce mobile phones, it
was necessary to seek government approval and build
a corresponding network. As a result, the mobile phone
was officially launched in 1983, 10 years after the first call.
The first-generation mobile phone had to be charged for
10 hours for a half an hour conversation, what about the
