Martin Cooper: Inventor of cell phone
Summary
Every time you text, tweet or speak on your cell phone, you are using the brainchild of Martin Cooper.
On April 3, 1973, on the streets of New York, Martin Cooper made the world’s first mobile phone call. 1973 was the year mobile phones went on sale. Even in 1983, a portable hand-held cellular telephone cost $4,000.
The team that put the parts together had to squeeze many thousands of parts into the phone. The phone weighed over 2 pounds, and the battery lifetime was 20 minutes. The challenge was to create a network. The first network was set up in Chicago, and covered the city with only 10 or 12 cell sites. Since that time, cell phones have improved dramatically.
Keywords: Motorola, Martin Cooper, ArrayCom, DynaTac
