The earliest version of Mobile phone was first created in 1946, evolving into ultra-durable, shock-proof, vacuum-tubed contraptions that mounted to car dashboards by the 1960s. Mobile radio-based phone systems started in the early 1900’s in the form of ship to shore radio, and some police cars had them by 1921. In 1946, the first “mobile radiophone service” allowing calls from fixed to mobile telephones became available in St. Louis, and by 1964 there were 1.5 million mobile phone users in the United States.In the ’40s, radio phones had massive transmitter cabinets and receiver cabinets that had to be mounted in the trunk of the car, with a cable that ran under the carpet to a ‘control head’ on the dash.
Forwarded by :- Mitul Kansa,kansalmitul@gmail.com