Cell Phone

Have you ever stopped to think what it would was like before we had cell phones? You couldn’t just call from your car if you were running late for work, in a wreck, or trying to find directions. Technology is increasing day by day, and going to do nothing but get bigger. With every new bit of technology we get, there are always good and bad to come. Finding these problems is what makes technology interesting.

Since a cellular telephone is really a two way radio, you can start tracking cell phone history back to 1876 with the invention of the telephone by Alexander Graham Bell(********). In addition, to the telephone there had to be another part this is where the radio invented by Guglielmo Marconi came in 1895(********). A cell phone uses up two frequencies, one for sending your voice out and one which allows one to come in. This is why cell phones are considered two way radios, or full-duplex devices(******) this way more than one person can communicate at a time, instead of a half-duplex for instance a walkie-talkie which only allows one person to talk at a time(******). It was not until 1984 that cell phones were first mass marketed to the public (*notes*). This was a boom in technolo

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