mobile phones across europe we all know what mobile phones are, but do we really know how do they...

MOBILE PHONES

ACROSS EUROPE

• We all know what mobile phones are, but do we really know how do they work and how do they have improved? We are going to try explaining you about them.

Introduction

Who Invented the mobile Phone?

• It was invented by Bell Labs from about 1947 to 1967

•Later, Martin Cooper apparently build a small radio telephone that could be carried by a person.

Global System for Mobile communication

• It’s based on TDMA which means that many people can use the system at once.

• Time Division means that each user has conversations going through at different times.

3G• 3G is the third

generation of mobile phone technology.

• Services include wide-area wireless voice telephony.

• 3G networks are wide area cellular telephone networks which evolved to incorporate high-speed internet access and video telephony.

Mobile phone cameras

• The first camera phone was a SHARP and J-Phone in Japan in 2000.

• Today's state of the art (January 2005) camera phones have 5 Megapixel image size, auto-focus, movies, GPS, JAVA, 3G or 3.5G mobile internet connection.

10 megapixels

Little computer as mobile phones: the

iPhone• iPhone is a revolutionary new mobile phone that allows you to make a call by simply tapping a name or number in your address book, a favorites list, or a call log.

• It also automatically syncs all your contacts from a PC, Mac, or Internet service. And it lets you like email.