Advantages and Disadvantages

• Advantages:

• if you are lost, you can call for directions.
• if you are in an accident, you can call the police or ambulance - and if the phone has a camera, you can take pictures of the accident.
• you can listen to music, text, play games when you're bored.
• most mobile phones have a calculator and a phone book.
• you can use a mobile phone to call your customers or boss if you are running late to a meeting.
• You can surf Internet & Connect with the whole world by Mobile.
• You can chat & video conference.
• keep in touch with friends and family
• good for emergencies
• Phones have internet connection
• More work avaliable
• They have cameras
• You can cheak your emails
• Can be used worldwide
• it can fit in your pocket.

Disadvantages:

• mobile phones can be expensive
• they can damage your ear 
• sometimes the reception is poor in some areas, limiting your connectivity (you can't talk underground or on planes).
• people use the phone while they are driving, and this can cause problems.
• They can limit your face to face time with friends and family 
• They can get you in trouble at school
• Can be expensive
• can be hard to find the right package
• Can ruin the connection to the computer.
• Can be hard for older people to use.

INVENTORS

Martin Cooper pioneered Motorola’s research for cellular phones. He was raised in Chicago, and attended the Institute of Technology in Illinois where he obtained a degree in electrical engineering. After working for the navy he also worked for a telecommunications company, and got a job with Motorola in 1954. Cooper worked on the first portable handheld police radio. He was also the first to ever make a phone call using a cellular phone.

Some of the other people that aided in the invention of cell phones include Richard W. Dronsuth, Albert J. Mikulski, Charles N. Lynk Jr., James J. Mikulski, John F. Mitchell, Roy A. Richardson, and John H. Sangster.

History of mobile phone

            Cell phones originated in 1920's. Radios were used since 1921.Features were put into these radios in the 1940's and they were used by police. The concept of the cellular phone was developed in 1947 which originated from the mobile car phone and the concept was produced by Bell Laboratories.

         The first actual cell phone was made in 1973 by Martin Cooper of Motorola and other assiting inventors who used the idea of the car phone and applied the technology necessary to make a portable cell phone possible.Cell phones were first made available to the public in 1984.They were very big and expensive.

Martin Cooper of Motorola

 This is a time line of the cell phone:

 It had been develop for a long time from the past to present and now we get a very cool mobile phone which have a lot of application and function for you to chose and buy it. 

Cell Phone technology

Nowadays people communicate with each other easier. There are many different ways to communicate  and mobile phone is also a one way to communicate.The mobile phone technology revolution are very important to be the globalization.Mobile phone help us to talk together in everywhere and every time. Not only we can communicate each other in a very short time but the cost of mobile phone are cheaper and cheaper.

As you can see in this picture the cost of the mobile phone are very cheap.

Evolution of mobile phone