1. Rodrigo Vega
Camila Ventoza
Evolution of Cell Phone

2. Origin
 Cell phones may be new
devices, but they originated in
the 1920’s. Radios were used
since 1921. Features were
put into these radios in the
1940’s, and they were used
by police. The concept of the
cellular phone was developed
in 1947 which originated from
the mobile car phone. The
concept of the cellular phone
was produced by Bell
Laboratories.

3.  The first actual cell phone
was made in 1973 by Martin
Cooper of Motorola and other
assisting inventors who used
the idea of the car phone and
applied the technology
necessary to make a portable
cell phone possible. Cooper
worked on the first portable
handheld police radio. He
was also the first to ever
make a phone call using a
cellular phone. Cell phones
were first made available to
the public in 1984. Back
then, they were very

4.  The Federal Communications
Commission made a regulation
that limited radio-spectrum
frequencies. This is the reason
only twenty-three simultaneous
conversations were possible in
the same service area. In 1968
the FCC decided to increase
the frequencies to allow
research for better connections.
The FCC worked together with
AT&T and Bell Towers to
establish broadcast towers. The
towers were small with low
power and covered a “cell” that
was a few miles in radius, but
actually covered a larger area.

5.  The first cellular phones
to be created were very
large and bulky. This
made them difficult to
carry around. The first cell
phone came to the market
in 1984 from Motorola and
weighed 2 pounds. It was
a DynaTac 8000X which
was selling for $3, 995. A
few years later, in
1991, the Motorola
MicroTac Lite was created
which cost $1,000.

6. Pre-Mobile Phones
 The electronic
components used in cell
phones of today’s
generation were first
developed in the 1960s.
During this time, the
technology of cell phone
was already available.
The problem that
persisted during that
time was the user was
restricted to a certain
block of areas, which

7.  During this time, the
technology for cell
phones had been
developed but it was
only in 1971 when there
was a request for
cellular service. AT&T
submitted a request
public cellular service to
the FCC in 1982.

8. First Generation Cell phones
 The FCC approved it for
public use after much
deliberation and testing
of the device. Since
then, Motorola has been
developing the
communication
technology of cellular
phones.
 Cell phones became
popular and received
demand from the public
during the 1983 to 1989
period.

9. Second Generation Cell
phones
 During the 1990s, the
technology on which the
cell phones worked was
called 2G or second
generation. 2G cell
phones were also used to
switch the transmissions in
the digital circuit which
made it easier to make
calls. 2G cell phones had
a faster network which
functions on radio signals.

10.  These replaced the
analog network
frequencies.
Eventually, the adaption
of modern networks made
the analog frequencies
obsolete.
 The 2G cell phones were
smaller, around 100 to
200 grams. These were
hand-held and were
portable. The
advancements happened
in cell phones, their
batteries, computer
chips, etc. Due all these
improvements, the cell
phone customer base
expanded rapidly.

11. Third Generation Cell phones
 The cell phones used
nowadays are the third
generation phones. 3G
was soon launched after
2G. However, the
standards that are used
in 3G cell phones are
different from one model
of the cell phone to the
next. This essentially
depends on the network
providers.

12.  These cell phones could
also message other users
via SMS (Short Messaging
Service), send emails and
access the
Internet, stream live
videos, stream radio, and
use the Wi-Fi.