Mobile phone celebrates 40th birthday
April 4 , 2013
The mobile phone celebrated its 40th birthday on Wednesday.
The first mobile phone call was made on 3 April 1973 when Martin Cooper, a senior engineer at Motorola, called a rival colleague and announced he was speaking from "a 'real' cellular telephone".
According to a report carried out by the International Telecommunication Union last year, there were six billion mobile phone subscriptions worldwide.
At the time of Cooper’s phone call, the global population was seven billion.
Cooper, now aged 85, is renowned as the "father" of the mobile phone.
He said his vision for the mobile phone first came about in the late 1960s when AT&T invented the car telephone.