Project 4
Sherrell
Johnson
Rhet 1311
Evolution
of Cellphones and Cellphone Subscribers
The history
of cell phones goes back to the early 1920’s. The first use of any type of phone
or radio in a car was in taxis, trucks, or car with two-way radios. As cell phones evolved over time, user
subscribers grew tremendously in number and usage. The first cell phone was used by Swedish
police in 1946. It was generally similar
to a two way radio. In 1947 an engineer
from Bell Labs discovered cell phone towers which had capabilities to transmit
signals in three directions. The cell
phone generation improved and became limitless as time went on.
In 1971
AT&T submitted a request to the FCC for cellular service. It took about ten
years before the request was granted.
Once granted cell phones worked only on analog frequencies. In 1990 amps went digital and went
online.
Motorola was
the first company to come out with the first cell phone called Motorola DynaTac
800X. The FCC finally approved this
device after years of testing. After
about 15 years of development Motorola DynaTac was finally available to the
public. During this time 13 x 1.75 x 3.5
inches was considered to be lightweight and easy to carry. These phones were shaped like tote bags and
could completely cover the side of your face.
A cell phone’s main power source
was the battery of the car. It was not common to have a cell phone in the early
80’s. Majority of people who had phones were doctors, lawyers, drug dealers or
people who had money. The demand for cell phones would increase rapidly and the
need for a phone would continue to grow.
During the
90’s technology for cell phones worked on 2 G or second generation. Cell phones were operable on systems called
CDMA, TDMA, and GSM. During this era the look of the cell phone changed. Cell phones went from big and heavy devices
to light weight and small. These 2G phones were faster and better because they
worked on radio signals. Eventually
analog service became obsolete. The improvements made the demand for a cell
phone expand rapidly. The advancements
paved the way for PDA devices.
Cell phones
presently are 3G or third generation.
The wave of technology increased subscribers and usage. More people will become dependent on cell
phones for work, school and life. During this era cell phones will be able to
text, sms, and send emails, steam video’s and use Wi-Fi over air waves. The use
of sms and text messaging will become popular with teens and young adults. Now it’s so common to see someone with a cell
phone or PDA. Charts show how
subscribers have tripled since the 80’s.
Teenagers make up a large number of users presently. While 75% of teens
own phones, 25% do not own cell phones and 54% of teens will text from their
cell phone and check Facebook daily.
Adult subscriber’s text, email and Facebook, but most use their phones
for more important use.
In
conclusion evolution of the cell phone changed due to improvements in
Technology. The cell phone would become
light weight and portable for daily use.
The cell phone improvements like text, sms, streaming videos, and Wi-Fi
would increase subscribers among teens and young adults. The evolution made
cell phones more user friendly and accessible for all. Society would become dependent on cell phones
for life.
