What are cell phones?
Mobile phones, also known as cell phones or cordless phones, are portable phones with built-in antennas. Unlike home phones, mobile phones can be carried from one place to another with a minimum of effort. This makes them a good option for people who want to be in contact with other people even when they are away from home.
How cell phones work?
Not many people know this, but mobile phones are actually two-way radios, much like the walkie-talkies of the past, only much more advanced. When you speak to your cell phone receiver, it picks up your voice and converts the sound into radio waves. These waves travel through the air until they reach a receiver, usually located at a base station. This station will then send your call through a telephone network until it reaches the person you wish to speak with. Similarly, when someone makes a call to your cell phone, the signal travels through the telephone network until it reaches a station near you. The station sends the radio waves to the neighboring areas. These radio waves are then picked up by your cell phone and converted into the sound of a human voice.
Cell phones are a vast improvement over the telecommunications technology of the past and are becoming a daily fixture of modern life. As always, communication is vital and cell phones will help you better communicate with the key people in your life. Using a cell phone is one of the first steps you need to take to participate effectively in the emerging global economy.
