Cell Phones

Cell phone is an electric device which is used for telecommunication and is known as mobile phone, cellular telephone and cell phone as well. Cell phones are very different from cordless phones because cordless phones provide very limited range of signals so that’s why are not so common while cell phones are commonly used now these days. Cordless phones are limited to only land lines while cell phones are very unique and so common with user friendly features as well.

Cell phones provide dialing and receiving of calls service across all over the world. Now these days’ cell phones are user friendly and covering almost all eras over the globe of network. One of key features of cell phone is that you can move with it in wide areas at any where. This will work fine.

Now these days as we know is era of modern technology so there are different features which cell phones providing like sms, emails, internet, MMS, Bluetooth, wifi, Mp3 and Mp4 player, GPRS, radio etc.

First cell phone was discovered by Dr. Martin Cooper of Motorola in 1973. Weight of that hand set was 2 kg (4.4 lb). Commercially first cell phone was released in 1983. With rapid use of cell phones just in very short time span of its invention in 1990, 12.4 million people were having subscription of cell phones. After 20 years later in 2009 this limit from 12.4 million reaches to 4.6 billion means to say 370 times greater than numbers in 1990.

Cell phones having various numbers of features in common but manufacturers also invented some cell phones with very unique features to make different from common as well.   There are some salient features of laptops which are in the followings.
1. Rechargeable battery with source of power.
2. Key pads touch screens and these unique features are always fine in very smart cell phones.
3.  Simple cell phones have basic options like text messages and calls facility.
4. Sim cards are used always in cell phones.
5. Some satellite cell phones are uniquely identified by an International Mobile Equipment Identity (IMEI) number.

Now these days’ cell phones are more advance and very unique in features. Mobiles are very common among all peoples in the world. Latest cell phones having ability of computing as well and first smart phone was introduced by Nokia in 1996.

Unique cell phones which are commonly used among professionals is BlackBeryy, iphone , PalmPre, Nokia Nseries etc. One unique form of cell phones is 3D cell phones. These cell phones are used by younger which are so conscious about gamming like features.

These days cell phones are very common in use and are very cheap even used cell phones are also available in market as well. Price of used cell phones is also depends on condition of cell phone.

There are different advantage and disadvantage of cell phones. Much usage of cell phones is not so good for health so we should avoid from every time usage. Mobile phones contain some toxic material which when enters to ecosystem is dangerous for us.