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
By the year 2000, more than a billion people all over the world had gone wirelessâusing cellular technology to talk and deliver text and photos on super-lightweight telephones smaller than a deck of cards. Alexander Graham Bell's invention of the telephone in 1876 rang in the era of talking at a distance.Innovators in the 20th century expanded the telephone's reach across continents and oceans, figuratively shrinking the world and connecting its citizens.ndependently invented by the American Telephone and Telegraph Company's (AT&T) George Campbell and Michael Pupin of Columbia University, the loading coils are first used commercially in New York and Boston, nearly doubling the transmission distance of open lines.