I am doing a project –cell phones history timeline, for my college seminar. I have already collected some data regarding that topic but still I need more information and ideas to make my seminar more informative and interesting. I want to ask about the history of cell phone, what are the step taken to make the early heavy communication equipment to modern light and slim cell phone devices. I also need to have some light on the generation of cell phone and its network technologies. All you precious information will help me a lot in making my seminar successful