Mobile phone

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How to purchase a smart phone.

First ask, what is a smart phone? A smartphone is a mobile phone that runs on a mobile operating system. That can do more than a normal future phone, like for instance it can play games surf the web and play music. The first smart phones combined the featured of many different products like a PDA, a cell phone, and it also gives the phone email capabilities. It gives capabilities to write, read, and send e-mails from the phone, so in many cases it eliminates the need for a laptop and or desktop computer for email purposes. Newer phones have features such as the ability to listen to music, take pictures or videos, play many games, and surf the web.

A big part of choosing a smart phone, is choosing which style of phone will best fit the person, touch screen phones now dominate the market. However there are many different types of touch screen styles for example, resistive, capacitive, surface acoustic wave, and infrared. The resistive touchscreen works by a flexible top layer of polyethylene and a ridged bottom layer of glass. Both layers are coated with indium a conductive compound, when a finger, or a pen applies pressure to the top screen and make contact with the bottom layer the electrical current is detected and the phones operating system (OS) notices reacts to where the pressure was applied. Common products that use these types of touchscreens are the Nintendo DS and the Nokia N97. (Engineers Garage)

Figure 1 Nokia N97 (Daily Mobile)

Capacitive touchscreens is the most widely used screen today, it works by using a thin layer of Indium Tin Oxide (ITO), however this is different because only one layer is coated with the ITO. How i...

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Work Cited

12 november 2013. 11 novmber 2013 .

Daily Mobile. n.d. 21 11 2013 .

Engineers Garage. 2012. 14 11 2013 .

fingas, jon. 2012. 19 11 2013 .

Kleinman, Jacob. TechnoBuffalo. 7 7 2013. 21 11 2013 .

Miles, mike lowe & Stuart. 14 11 2013. 19 11 2013 .

morphie. n.d. 21 11 2013 .

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