Πριν από 43 χρόνια, στις 3 Απριλίου του 1973, ένας μηχανικός της Motorola που ονομαζόταν Martin Cooper έκανε την πρώτη κλήση με κινητό τηλέφωνο. Στην άλλη άκρη της lines was Cooper's main competitor, Joel S Engel head of Bell Labs.
The call was made with a Motorola Dyna-Tac mobile phone weighing one kilogram and thirteen grams. The mobile was somewhat relative since Dyna-Tac had dimensions: 23 x 13 x 4,5 centimeters. Its packaging was like a shoe box, it contained 30 circuit boards and a battery with a maximum talk time of about half an hour and that you needed to recharge it for 10 hours. He had no screen, and you could do with him only three chores: talking, listening, and making a call.
Dyna-Tac had already passed some FCC testing in Washington and the big day, Cooper gave one press conference at Manhattan Hilton demonstrating it. OR Motorola at that time it was trying to persuade the FCC to allocate more bandwidth to companies trying to commercialize the emerging technology.
After 43 years and having put them for good in our lives smartphones, all this sounds rather unreal and maybe in the generation of our grandparents. But it was only 43 years ago.
