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Mobile phone
The mobile phone is an electronical portable device which works without a thread (through radio). The phone became portable at 20th february 194. The inventor of the first mobile phone is considered to be dr. martin Cooper, the former system manager from Motorola Company. The first call from a mobile phone was made by Martin Cooper at 3nd april 1973.
Nowadays, cellular telephony or mobile is based on the standard of comunications and the GSM network. Mobile phones generally have as (a) source of energy
rechargeable electric batteries.
The mobile phone is an electronical portable device which works without a thread (through radio). The phone became portable at 20th february 194. The inventor of the first mobile phone is considered to be dr. martin Cooper, the former system manager from Motorola Company. The first call from a mobile phone was made by Martin Cooper at 3nd april 1973.
Nowadays, cellular telephony or mobile is based on the standard of comunications and the GSM network. Mobile phones generally have as (a) source of energy
rechargeable electric batteries.