“Martin Cooper” fifty years ago to the day April 3, 1973 He stood on a Sixth Street corner in New York City, dialed a cell phone that was very different from today’s phones, and called a rival colleague at Bell Labs to proudly announce that he was using a personal portable telephone for the first time.
to report BBCMr. Cooper, who was an engineer at Motorola at the time, says he remembers how passersby stared at him when he was holding the big cell phone and making calls. Cooper says that the other side of the conversation was stuck and had nothing to say.
Bell Labs focuses on development, says former Motorola engineer Mobile phone for cars had left “Can you imagine that,” he says of the rival company’s misguided approach. We have been limited to these copper wires in our homes and offices for more than a hundred years, and they wanted to bring this limitation to cars!”
But Motorola disagreed with the opinion of Bell Labs and followed another approach that we see today as a result of its success. The interesting thing is that the basic principles of the first mobile call have not changed much. Mobile phones convert your voice into electrical signals and through Radio communication are sent Then these radio signals arrive at the destination and are converted into sound so that the other party can hear your voice.
The first mobile phone that could make a phone call
The commercial version of the mobile prototype used by Martin Cooper on April 3, 1973, eventually 11 years later under the title Motorola Dynatac 8000X Released. The equivalent price of the device in the world today is estimated at 11,700 dollars.
The first mobile phone in the world didn’t even have the ability to send text messages and you could only use it 30 minute call Set up audio. The device could last 12 hours on standby, but a full charge would take 10 hours. In addition, a 15 cm antenna It was placed on it. The weight of this phone was 790 grams, which is almost four times the weight of the iPhone 14.
Cooper, 94, says that while he didn’t foresee mobile phones becoming the portable supercomputers they are today, he still thinks there’s a lot of room for improvement for these products. Cooper believes that artificial intelligence can take over many tasks, including installing applications or monitoring the user’s health status, and maximize our productivity.