A job description's primary purpose is employee recruitment. The job description alerts potential employees to the job opening and the job's requirements. As a result, the job description meets the company's need to attract qualified employees as defined by the job summary and job functions specified in the description.
dr martin cooper is the person credited with both inventing the modern cell phone as well as making the first cell phone call in new york city new york in april 1973 a related invention is the cave radio phone invented by nathan stubblefield who was awarded a patent for the idea in the early 20 th century 1908
The idea of a mobile phone had been around since the 1920's when police radios were in use. Finally, in 1973 Dr. Martin Cooper of Motorola created a cell phone that was usable. It was sold to government projects/offices and in 1984 the first cell was sold to the general public.