Mobile phones have limitless capabilities - Martin Cooper

Mobile phone is a very useful device, but the problem with it is that people use it excessively.

This is to say of the person who invented the mobile phone 50 years ago.

Martin Cooper, an American engineer who has been called the "father of the cell phone", says that the neat little device we all carry in our pockets has almost limitless potential and could one day cure many diseases. This may help.

But right now, we seem to be a bit obsessed with mobile phones. 

Martin Cooper, 94, from his office in Del Mar, California, said, "When I see someone crossing the street and using their cell phone, I am stunned. He doesn't exist. He exists in some other world."

He then adds jokingly, "But some people get to know when they get hit by cars."

Martin Cooper wears an Apple Watch and uses a top-end iPhone, flicking effortlessly between his email, photos, YouTube and the controls of his hearing aid.

He gets his hands on the latest model every time it gets upgraded.

But, he admits that with so many millions of apps available, it's bound to be a bit awkward.

"I'll never figure out how to use a cell phone the way my grandchildren and great-grandchildren do," he says.

Cooper's iPhone, which he says he prefers to use to talk to most people, has certainly come a long way from being a bulky block of wires and circuits.

Please tell that on April 3, 1973, for the first time, he used the phone to make a mobile phone call.

At that time he was working for Motorola company.

He was leading a team of designers and engineers who were engaged to come up with the first proper mobile technology.

The company invested millions of dollars in the project, hoping to beat the Bell System, which had dominated American telecommunications for more than a century since its founding in 1877.