Happy Birthday mobile phones
On April 3rd 1973 a Motorola employee made the first voice call from a mobile phone ever, which makes today its 40th birthday.
Martin Cooper made the call in New York to competitor AT&T and he is rumoured to have said on the landmark occasion: "I'm ringing you just to see if my call sounds good at your end."
The first device was called the Motorola DynaTAC and was, by today's standards, a massive nine inches and included 30 circuit boards, with a talk-time of 35 minutes and took 10 hours to recharge.
Mobile phones have evolved beyond what Mr Cooper could have imagined when he made that first phone call as video calls, texting, internet access and high mega-pixel cameras are all common in the devices on the market today.
The first devices would have cost around $4,000 (£2,650) each, which compared to the prices of handsets on our shelves now, was massively pricey.
The anniversary provokes the question of where another 40 years will take the mobile phone industry.
Posted by Claire Marshall
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