cell phones or who are often also referred to as cell phone has long accompanied the day-to-day to meet the needs of users to communicate. However, do you know how the origin and who the inventor of the mobile phone? All come back to Motorola cell phone history.
As the history told, The Motorola cell phone history begin by this person. Definitely, Martin Cooper, a Motorola employee successfully develop mobile devices on 3 April 1973. Along with the dream that you want to bring a small communication tool and easy to carry anywhere, Cooper and his team faced the challenge of how to incorporate all electronic material into such a small device.
But finally, the dream became a reality with the creation of a mobile phone with weights weighing two pounds. Where, the Motorola DynaTAC mobile phone become a milestone in the history of the world birth.
DynaTAC itself is known to have a size of 9 inches which consists of 30 circuit boards and can make calls less than 30 minutes to perform 10 hours of charging. To be able to be produced, Motorola when it must spend up to $ 1 million.
"The first cell phone model was then weighed more than one kilogram. Where, you can only do phone calls for 20 minutes before the battery runs out. Oh, one more thing you can not hold the phone in a long time, "Cooper said in a statement, as quoted by The Telegraph.
Reporting from a variety of sources, Martin Cooper entering the workforce for the first time to enter the ranks of the Reserve Officer Training Corps in the Navy (Navy) in the United States (U.S.). The man who bagged a bachelor's degree in Electrical Engineering in 1950, served in a U.S. Navy destroyer during the Korean War took place.
Shortly after the war was over, Cooper swerved into the Teletype, a subsidiary of Western Electric. Here, he began to explore the ins and outs of the world of telecommunications.
However, he later moved to Motorola in 1954. Vigorously while working there, Cooper continue to study the levels of S-2 in the evening. Finally, the man who was born on December 28, 1958 in Chicago, Illinois, the U.S. had won the Masters in the field of electrical engineering from Illinois Institute of Technology in 1957.
Armed with a powerful science, he slowly began to change the sheet technology is limited to information that was previously used mainly in a single building is becoming increasingly widespread. Where, Cooper plays a role in helping to repair defects in crystals of Motorola made for radio in 1960 ago.
In the same year, John F. Mitchell, who served as chief project engineer for Motorola portable telecommunication him in charge of the division assigned to the car phone (Carphone). The reason Mitchell and Cooper was then envisioned a communication device that is not only stuck in the car alone, but can be taken anywhere in a small size.
After 90 days requires craftsmanship, Cooper and his team and Mitchell finally patented invention "Radio Telephone System" on October 17, 1973 with patent number 3,906,166 which was then approved in September 1975 on their behalf.
Cooper became the first to successfully perform house calls via mobile phone. Do not want to miss this historic event, reporters and many people passing by on the streets of New York, the United States witnessed the first call is addressed to Dr. Joel S. Engel, head of research at Bell Labs.
"Joel, I call cell phones 'real'. Mobile telephones that can be taken anywhere, "reads the first sentence of the Cooper said at the end of phone.
Apparently, this marks the first call beginning development of fundamental technology world. The era in which allows one to communicate directly with other people whenever and wherever he is.
Finally, we can conclude that the cell phone history is as same as the motorola cell phone history. Am i right?
