Mobile Phone Presentation by Jaspreet Singh Lakhi

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MOBILE PHONES

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Contents Introduction Parts of a mobile phone

Mobile phone operators in India

Varities of mobile phones

Functions in a mobile phone

Manufacturing market share

Users of mobile phones

Merits of using mobile phone Demerits of mobile phones

Conclusion

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INTRODUCTION A mobile phone is a long-range,electronic device

used for mobile telecommunication over acellular network of specialized base stationsknown as cell sites.

In the beginning, two-way radios (known asmobile rigs) were used in vehicles such astaxicabs, police cruisers, ambulances

The first fully automatic mobile phone system,called MTA (Mobile Telephone system A), wasdeveloped by Ericsson and commercially

released in Sweden in 1956

Dr. Martin Cooper of Motorola, made the first USanalogue mobile phone callon a larger prototypemodel in 1973.

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PARTS OF MOBILE PHONEMain parts of a mobile phone are:

The circuit board(the heart of the system)

Battery (the lifeblood of

your phone)

Antenna

Liquid crystal display(LCD

Keyboard

Microphone & Speaker

Sim card

Flash memory chips

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MOBILE PHONE OPERATORS ININDIA

AIRTEL

Aircel

IDEA

VODAFONE

BSNL

RELIANCE

TATAHutch

Mtnl

Spice

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VARITIES OF MOBILE PHONE

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FUNCTIONS IN MOBILEPHONE

Audio & written communication

Capturing images

Video & voice recordings

Listening music Surfing internet

Watching TV ,live matches

Data storage

Games, calculations, radio

Organising tasks

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In Q3/2008, Nokia was the world's largestmanufacturer of mobile phones, with a global

device market share of 39.4%, followed bySamsung (17.3%), Sony Ericsson (8.6%),Motorola (8.5%) and LG Electronics (7.7%).These manufacturers accounted for over 80% of

all mobile phones sold at that time

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USERS OF MOBILE PHONES

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A wider opportunity to communicate by a principleof call frequency reuse

Efficient and effective way to communicate

Small and easy to carry around.

Cell phones have full duplex

Cell phone can communicate on 1,664 channels ormore& process millions of calculations per second

Cell phones (TDMA) use a dual band.

Store information, make task or to-do lists, keeptrack of appointments and set reminders

Cell phones are a faster and more effective way totransfer information

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Information transfer take place by means of modulatedelectromagnetic wave which emits E.M radiations causing

cancer of the ear or brain tumors since mobile phoneradiation does affect the electrical activity in the brain

Analog cell phones may have problems of cloning.

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 cancause problems

People use bluetooth and the camera in bad ways

Student's access to calls in schools and especially inclassrooms DISTURBS the study environment.

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Mobile Phones - A curse or a boon?

They are a must-have fashion accessory, and

with coloured fascias, aerials, covers, logos

and ring-tones available with Wider

Applications.They have become a necessity in

this modern world for communicationpurposes. on the other hand the harmful E.M

radiations destroys birds eggs& embroys&

kills them & also these radiations causeear

cancer & brain tumour. So, mobile phones area boon as well as a curse

CONCLUSION