essay on telephones vs smart phones.
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Answer:
smart phones always better.................. =^._.^= ∫
Answer:
Which do you have a smart phone or cell phone? Now, in Japan, many people have a smart phone. We can see many people who using a smart phone in train or in a class. A smart phone is becoming the indispensable thing for us. But, it is not true that a smart phone is always good thing. While smart phone and cell phone are similar, three key differences in function, look, and user, shows that smart phone have negative influences on our health.
One major difference between smart phones and cell phones is an electromagnetic wave. The first striking defference is the computer system.It is made to do data processing. Smart phones have this computer sistem. While cell phones don’t have it. Another major difference is the application. Smart phones have various applications like listening music, playing game, watching movies and so on. And we can use some applications at the same time. While call phones have a few application. And cell phones’ capacity is so small that cell phones can’t get many applications. These points lead the difference of the quantity of an electromagnetic wave. These complex system emits a lot of electromagnetic wave. Smart phones emit an electromagnetic wave hundreds times as much as cell phones. If we exposed to much electromagnetic wave, we tend to cause a blain tumor. So, smart phones cause the critical disease to us.
Second major difference between smart phones and cell phones is the liquid crystal display. It is the screen which shows graphics. The first striking difference is the size. Smart phones have big and flat body. And it has wide liquid crystal display. While cell phones have compact body and it’s liquid crystal display is small. Another major difference is the design. Smart phones have not so many design . While cell phones have many various design. For example, cell phones have fold type and the type like smart phones. These point shows that almost smart phone have the wide liquid crystal display. A liquid crystal display emits blue light. It have the most strong energy in a visible ray. It make our eyes tired. Smart phones have wide display and emit much blue light. So that our eyes tend to be tired when we use smart phone.
Third major difference between smart phones and cell phones is load. The first striking difference is using time. Smart phone have many function. So we use smart phone much time. The data shows that the people who change to smart phone from cell phone become use more smart phone than whem they had cell phone. Another major difference is the hand. When we use smart phones, we usually use both hands. Because smart phone is bigger than call phone. While cell phone need only one hand. These point lead that smart phone user use smart phone more long time with both hands. It is not good for our body. When we use smart phone both hands, we become a stoop. And if we continue that posture, our neck be damaged. If worst comes to worst, we hurt neck when we stretch out our neck. So using smart phone much time is over load for neck.
In conclusion, it is not true that a smart phone is always good thing. While smart phone and cell phone are similar, three key differences in function, look, and user, shows that smart phone have negative influences on our health.