Answer :
Final answer:
The letters on a phone dialing pad or rotary dial owe their history to Alexander Graham Bell and Thomas Edison. After Bell patented the telephone, the Bell Company (now AT&T) ended up possessing Edison's improved version of the telephone. The technology evolved rapidly, leading to the development of the dialing pad and rotary dial.
Explanation:
The history of the letters on a phone dialing pad or rotary dial has its roots dating back to the time of Alexander Graham Bell and Thomas Edison. Bell patented the telephone in 1876, capitalizing on the concept of telecommunication. The Western Union commissioned Edison to improve on Bell's invention and his version is what is closely related to the modern telephone we use today. However, his idea got sold to the Bell Company as they had already secured a patent.
This led to the formation of the American Telephone and Telegraph Company, today known as AT&T. The telephone saw quick adoption, with numbers increasing from fifty thousand in 1880 to 1.35 million by 1900. As technology advanced, the phone dialing pad or rotary dial was developed to ease the process of dialing and allow more efficient communication.
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