The Science, Engineering & Technology... an application is Wireless Communication

3. SURYA CHAKRABORTY
PRATAP MANDAL
SK USUF HOQUE
UDIT NARAYAN DUTTA

4. What is Science?
What is Engineering?
What is Technology?
Relationship between Science, Engineering &
Technology
Branches of Science
Case study on the relationship between Science,
Engineering & Technology-Wireless Communication
Examples of Wireless Communication
Radio
Mobile & Mobile Communication
Global Positioning System (GPS)
Advantages of Wireless Communication
Disadvantages of Wireless Communication
Bibliography

5. The word science comes from the
Latin "scientia," meaning knowledge.
Science is the pursuit and application
of knowledge and understanding of
the natural and social world following
a systematic methodology based on
evidence.

6. Engineering is the application of science
and math to solve problems. Engineers
figure out how things work and find
practical uses for scientific discoveries.
Scientists and inventors often get the
credit for innovations that advance the
human condition, but it is engineers who
are instrumental in making those
innovations available to the world.

7. What Is Technology? Technology is a body of knowledge
devoted to creating tools, processing actions and
extracting of materials. The term ‘Technology’ is wide
and everyone has their own way of understanding the
meaning of technology. We use technology to
accomplish various tasks in our daily lives, in brief; we
can describe technology as products, processes or
organizations. We use technology to extend our abilities,
and that makes people as the most important part of any
technological system.

10. Wireless communication is among technology’s biggest contributions
to mankind. Wireless communication involves the transmission of
information over a distance without help of wires, cables or any other
forms of electrical conductors. The transmitted distance can be
anywhere between a few meters (for example, a television’s remote
control) and thousands of kilometres (for example, radio
communication).

11. Radio was the firstly introduced wireless
communication device, through which,
communication is established without
any physical connection. Science has
brought human close in spite of their
geographical distance, which was got
success by Engineering where,
Technology invents the Radio which
made easier the wireless communication

12. The mobile phone base station receives the radio signal of a mobile phone –
and the information to be transmitted – with its receiving antenna. It
relays this signal, via a traditional cable connection or a microwave link, to
the mobile switching centre. The mobile switching centre is responsible for
routing calls and handling the entire connection, including ringing through
to the end connection. It also carries out services such as call forwarding,
call waiting or conference calls. Additionally, it registers the billing data.
The mobile switching centre will either hand the call over to the traditional
fixed network or to another mobile switching centre that will transmit the
call to the base station closest to the called party. It is from here that it can
reach the mobile phone.

14. The Global Positioning System (GPS) is a space-based satellite
navigation system that provides location and time information in all weather
conditions, anywhere on or near the Earth where there is an unobstructed line of
sight to four or more GPS satellites. The system provides critical capabilities to
military, civil and commercial users around the world. It is maintained by the
United States government and is freely accessible to anyone with a GPS receiver.

15. i. Communication has enhanced to convey the information
quickly to the consumers.
ii. Working professionals can work and access Internet
anywhere and anytime without carrying cables or wires wherever
they go. This also helps to complete the work anywhere on time
and improves the productivity.
iii. Doctors, workers and other professionals working in
remote areas can be in touch with medical centres through
wireless communication.
iv. Urgent situation can be alerted through wireless
communication. The affected regions can be provided help and
support with the help of these alerts through wireless
communication.
v. Wireless networks are cheaper to install and maintain.

16. 1. It's a bit more difficult to setup properly
2. Risk of 'outsiders' accessing your network
unless robust security protocols are enabled
(exp WPA, WPA2)
3. Significantly slower than a wired network (2 –
50 times slower).
4. The network can be less stable. Wireless
reception may be impaired by a number of
factors including large distances or objects
between wireless devices, and other wireless
networks.

17. http://www.sciencecouncil.org/definition
http://www.useoftechnology.com/what-is-
technology/
http://www.durofy.com/technology/the-difference-
between-science-engineering-and-
technology/attachment/sciengtech/
http://www.engineersgarage.com/articles/wireless_c
ommunication
http://www.izmf.de/en/content/how-does-
transmission-mobile-communication-work
http://en.wikipedia.org/wiki/Global_Positioning_Sys
tem