Yesterday while having fun with the friends, we started talking about the technologies and then one of them raised the topic of cell phone. at that moment one asked me when was cell phone invented. I was blank, without any answer. Upon that every one started making jokes on me, tell that not knowing about the thing which have become the part of our life and use it at each and every moment. I felt so embarrassed. Now I need all your help to have detailed information on history of cell phone and especially when were the cell phones invented and who invented it?