Cell Phones
It is common in this day in age for everyone to have a cell phone. Most likely everyone in this room has one. People use cell phones everyday but do they really know how they operate. What causes a cell phone to work so easily and efficiently? Hopefully this speech can clear things up about the cell phone.
There are many different choices when someone wants to purchase a cell phone. The main choice would …
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…uses 800 MHz as a primary range. CDMA uses 800 MHz and 1900 MHz simultaneously as a range for good reception. GSM uses 1900 MHz primarily and 800 MHz as a secondary.
Cellular phones are becoming more advanced everyday. In the next couple of years cell phones might be used as we use computers today. A select group of cell phones today can already do things we use a computer for. I hope we stay up with technology left behind.
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