The document discusses the history and evolution of mobile phones from the first cell phone in 1984 to modern smartphones. It describes some key early mobile phones including the DynaTAC8000X which weighed 2 pounds and could only store 30 contacts, the Nokia 9000 Communicator which was one of the first flip phones, and the Blackberry 850 which was the first with a QWERTY keyboard. It also notes the Sanyo SCP-5300 as the first camera phone and mentions some health concerns with prolonged mobile phone use.
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Cell phones technology
4. Mobile phones are used for a variety of
purposes, including keeping in touch with
family members, conducting business, and
having access to a telephone in the event
of an emergency
5. A battery, providing the power
source for the phone functions.
Voice call
Sending & receiving pictures and
videos through MMS and Bluetooth.
Memory card reader
Video calling
7. THE FIRST CELL PHONE WAS NAMED
DynaTAC8000X.
IT WAS CREATED BY MARTIN COOPER IN
1984.
IT TOOK OVER A DECADE TO DEVELOP AND
$100 MILLION.
ITS WEIGHT WAS ABOUT 2 POUNDS &COULD
STORE ONLY 30 PHONE NUMBERS.
ITS BATTERY WAS NEEDED TO BE CHARGED
FOR 10 HOURS.
THIS PHONE COSTS 3,995 DOLLAR!!!!
8. AFTER THE DynaTAC8000X
,MANY PHONES WERE MADE
BUT FLIP PHONES BECAME THE
MOST POPULAR AMONG
PEOPLE. THE FIRST FLIP PHONE
WAS NAMED AS NOKIA 9000
COMMUNICATOR. IT CAME IN
LATE 1980’S.
9. THE FIRST BLACKBERRY WAS CALLED
BLACKBERRY 850.
IT WAS THE FIRST PHONE WITH QWERTY
KEYPAD.
10. IT WAS THE FIRST PHONE TO OFFER WEB
BROWSING, E-MAIL ACCESS AND INSTANT
MESSAGING.
IT WAS ALSO THE FIRST PHONE WITH A
‘SWIVEL’ DESIGN.
11. THE FIRST CAMERA PHONE WAS THE SANYO
SCP-5300.
PHOTOS WERE OF VGA QUALITY.
PHOTOS TAKEN WERE ALSO BLURR.
12. THE FIRST PHONE- DynaTAC8000X
THE FIRST FLIP PHONE- NOKIA 9000
COMMUNICATOR
THE FIRST BLACKBERRY- BLACKBERRY
850
THE FIRST SWIVEL PHONE-DANGER HIP
TOP
FIRST CAMERA PHONE- SANYO SCP 5300
FIRST GAME PHONE- NOKIA N GAGE
FIRST PHONE WITHOUT KEYPAD- IPHONE
14. People who use a mobile phone for
hours a day are more likely to
develop mouth cancer than those
who do not talk on them at all.
Mobile phones use microwave
radiation to communicate.These
waves cause disturbance in sleep &
cause difficulty in
concentration.They increase the
blood pressure
15. Mobile phones damage key brain cells
and could trigger the early onset of
Alzheimer’s disease.Researchers have
found that radiation from mobile phone
handsets damages areas of the brain
associated with learning, memory and
movement.
People who used cell phones are more
likely to have a temporal brain tumor on
the side of the head where they held
their phone.
16. Use a hands free set to reduce the
amount of radiation.
Hold the mobile from the bottom.
Try to use the phone in an open
area ,this will also reduce the
radiation.
Don't talk too long on mobile
phones.
18. 1. 3G mobile telecommunications is a
generation of standards for mobile
phones and mobile telecommunication.
2. 11 December 2008, India entered the 3G
arena with the launch of 3G enabled
Mobile and Data services. MTNL becomes
the first 3G
Mobile service provider in India.
19. 1. In telecommunication 4G is the
fourth generation of cell
phone mobile
communication standards.
2. A 4G system provides mobile
ultra- broadband Internet access
.
20. 3. Conceivable applications include
amended mobile web access, IP
telephony, gaming services, high-
definition mobile TV, video
conferencing.
4. The 4G system was originally
envisioned by the (DARPA).
5. A major issue in 4G systems is to make
the high bit rates available in a larger
portion of the cell.