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What is a mobile phone ?

What is a mobile phone
What is a mobile phone



What is a mobile phone


Mobile, mobile, cellular, or mobile is defined as a wireless communication device that operates through a network of transmission towers, which are distributed over large areas to cover them. They are connected by fixed lines or satellites. It is more than just an audio-only way, and it's like a laptop, which does a lot of things like scheduling appointments and receiving voicemail as well as browsing websites.

A Brief History of Mobile Phone


The invention of mobile phones dates back to 1947, when Lucent Technologies began experimenting with the invention of a mobile phone, but the first mobile device maker was American researcher Martin Cooper, who works for Motorola Communications in Chicago. The first call was made by cell phone On the third of April of 1973.


The principle of mobile phone work


The principle of mobile phone work on the reception and transmission through the signals of vibration sent by ground and other ground stations, which is very powerful, up to 20MZ transmission and reception per second, and the process of communication is through an integrated circuit located in the mobile phone with a card The SIM is also known as a very slim and compact volume, as well as a processing unit that stores user data to communicate with others.


Mobile Phone Features


  1. Ability to contact, talk to, and see others.
  2. The possibility of sending SMS to all over the world. The possibility of entertainment with games available on it.
  3. Ability to listen to various audio files
  4. Radio and sound recording


Pros and cons of mobile phone

Positives:


  • Provide mobile users with the opportunity to communicate with those who want quickly and easily around the world.
  • The opportunity to use the Internet, reply to emails, and browse various websites.


Negatives:


  • People's excessive use of mobile phones has taken a lot of time in their lives, with different ages and interests, which has increased social and psychological problems among mobile phone users.
  • There are many warnings about the health risks of using a mobile phone. Radiation from these phones can cause biological changes in the body's cells, affect the protein system in these cells, cause chemical tensions in the structure and increase the risk of cancer.


Tips for prevention of mobile phone damage


  • Do not call the phone if the network is weak. Avoid making calls while traveling.
  • Prefer to use the microphone when talking to mobile instead of putting it on the ear.
  • The speakers are placed in the ear only during the call.
  • Avoid placing the mobile near the sensitive organs of the body.


See also

How to identify applications that slow down your phone

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