1 / 6

History of Cell Phones

History of Cell Phones. By Tim Douglas Class: Mr. Cline Period: 4. The Cell Phone. A cell phone is a handheld

ronda
Télécharger la présentation

History of Cell Phones

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. History of Cell Phones By Tim Douglas Class: Mr. Cline Period: 4

  2. The Cell Phone • A cell phone is a handheld electronic device used for mobile telecommunications that allows you to communicate with another people in two main ways such as texting or simply calling a person. Cell phones can be used to explore the internet or even play games on .

  3. History of the Cell phone • 1946 - The first commercial mobile radiotelephone service was introduced in St. Louis. • 1977 - Experimental cellular systems launched in Chicago and the Washington, D.C./Baltimore region. • 1983 - The first commercial cellular system begins operating in Chicago. • 1992 – World’s first commercial text message sent by employees of Logical CMG. • 1996-The Telecommunications Act of 1996 becomes law, in part designed to open other communications markets to competition. 38 million cell phones in use in the U.S. • 2003-200,000 times each day, someone uses a wireless phone. • 2007- there were 295 Million subscribers on 3G networks worldwide.

  4. Major changes • Introduced as mobile rigs it was mainly used in police cars , taxis, and other emergencie vehicles. • The first mobile phones where the size of a large briefcase. • The 2nd Generation of cell phones ran on battery power making them more energy efficient but where about the size of a large walkie talkie. The 3rd Generation of cell phones the flip phone and internet and text messaging was introduced.

  5. Effects on Society • Cell phones gave a large percentage of the world's population an inexpensive, easy-to-use means of communicating with almost anyone else on the planet. It has made a fast and easy compact on the world...and a huge number of other areas. Some say that communications is the most important and powerful aspect of society.

  6. References • http://wiki.answers.com/Q/How_do_cell_phones_impact_the_world • http://www.cell-phone-accessories.com/timeline-cell-phones.html • http://www.thepeoplehistory.com/mobilephones.html

More Related