Telecommunications devices, including cell phones, satellite radio or Voice over IP, connect us to one another and to the world of information at our fingertips. Learn all about the technologies we depend upon for efficient communication.
On a "complexity per cubic inch" scale, cell phones are some of the most intricate devices people play with on a daily basis. Take a look inside a cell phone.
By Marshall Brain
Telephones are one of the greatest technological advances of our time. Do you know how your call gets to its destination? Learn all about how the telephone works in this article.
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