1. To The
Presentation

2. Name: Iftekar Hasan
Id: BBA 055 17120
Batch: 55 D

3. Topic: Mobile Phone

4. Agenda:
• What is Mobile Phone
• History of Mobile Phone
• How does it work
• Advantage of Mobile Phone
• Disadvantage of Mobile Phone
• My opinion about it

5. Mobile Phone
Mobile phone is a wonderful
invention of information
technology. It is such a cordless
phone by which we can
communicate and talk to others
in the shortest possible time.

6. History of Mobile Phone
• The first handheld mobile cell phone was
demonstrated by Motorola.
• The first commercial automated cellular
network was launched in Japan in 1979.
• The second generation (2G) digital cellular
technology was launched in Finland in 1991.
• In 2001 the third generation launched in Japan
by NTT DOCOMO

7. How does it works:
• Phone converts voice into electrical signal
• This converts as radio waves and converted back into
sound
• Quiet similar to a walkie-Talkie or CB Radio
• Send a signal over only a short range
• It requires one frequency for speaking and one for
listening

8. Advantages of Mobile Phone:
• Easy communication
• Text massege
• Internet browsing
• Video calling
• Playing games
• Email transfer

9. Disadvantege of Mobile Phone:
• Injurious to our health
• Harmes our brain While talking
• Excessive use causes Fatal diseases
• Breaches of privacy and security
• Distraction

10. My Opinion:
Though it has some demerits, it is truly a
blessing for our civilization.

11. Any Query???