3. “Nanotechnology is the art an science of
manipulating matter at the nanoscale”.
1 nanometer (10-9m)-one millionth of a
millimeter, one billionth of a meter.
It is the key technology of the 21 st century.
Nano particles- materials that have size in nm at
least in one dimensions.
4. The first ever concept was
presented in 1959 by the famous
professor of physics Dr. Richard
P.Feynman.
Invention of the scanning
tunneling microscope in 1981 and
the discovery of fullerene(C60) in
1985 lead to the emergence
of nanotechnology.
The term “Nano-technology" had
been coined by Norio Taniguchi in
1974
9. Surgery and Radiation cannot be used to treat all types o
Survival rate very poor after IInd stage.
Numerous side effects – hairloss, fatigue, nuetrophenia
If we increase dose beyond a threshold value, it can be fa
12. With NT, we can
create unique
materials and
products which
are:
Stronger
Lighter
Cheaper
Durable
Precise
Computers can
become a billion
times faster and a
million times
smaller
Automatic
Pollution Cleanup
Manufacturing at
almost no cost
End of Illnesses
(i.e. cancer, heart
disease)
Universal
Immunity (i.e. aids,
flu)
Body Sculpting
(i.e. change your
appearance)
Industrial MedicalMaterial
Advantages
13. Nuclear and atomic bombs can have different
dimensions
Cloning and miniaturization
Nano medicine- worrying factor!
17. Information technology (IT) is
the application
of computers and telecommunic
ations equipment to store,
retrieve, transmit and
manipulate data, often in the
context of a business or other
enterprise.
18. 18
Agricultural Age: The period up to the
1800s, when the majority of workers
were farmers whose lives revolved
around agriculture.
Industrial Age: The period from the
1800s to 1957, when work processes
were simplified through
mechanization and automation.
19. 19
Information Age: The period that
began in 1957, in which the majority
of workers are involved in the creation,
distribution, and application of
information.
Knowledge Workers: Workers
involved in the creation, distribution,
and application of information.
21. IT in Education
◦ Driving force in educational reform
◦ Students have many opportunities to
learn the basic computer skills to
facilitate their learning.
Multimedia learning centre
(MMLC) in secondary
school
Classroom with a
projector
22. IT at Home
◦ Smart home technology
Allows people to control household and other
domestic appliances over the Internet
◦ Personal computer
Has become a necessity for many households
23. IT at Home
◦ Personal computer
Uses of personal computer
24. IT at Home
◦ Home office
Refers to a small computerized office setup
at home
Self-employed persons can work at home
and communicate with others through the
Internet.
Self-employed
person
Clients
Colleagues
25. IT in Public Places
◦ Internet access service
It is provided in various public places.
The public can obtain information from the
Internet more conveniently.
Internet access
service in public area
26. IT in Business
◦ E-commerce
We can book tickets online
(http://www.cityline.com.hk)
We can also purchase
groceries online
(http://www.wellcome.com.hk)
27. IT in Government
◦ Information technology has become an
important means of providing government
services.
◦ Under the ‘2004 Digital 21 Strategy’, the
Hong Kong SAR government has
committed to developing e-government.
28. IT in Government
◦ Electronic Service Delivery
A web site that provides a wide range of
government information and services
The services include,
application for
government
job vacancies
payment of
government
bills
making
appointments for
The use of
public services
purchasing
books
30. IT in Government
◦ Smart Identity Card
Contains personal data, templates of thumb prints and
photograph of card holder
Information stored is encrypted with high security
Uses
Automatic immigration clearance (e-channel)
Value-added information (e.g. library card)
31. Lifelong Learning
◦ People must be information literate so as
to handle vast amount of information
encountered everyday.
Changing
skills
and
knowledge
for effective
use of IT
People
supplement
their
knowledge
through
continuing
education
33. Telecommuting
◦ Advantages of telecommuting
Save
travelling
time
Provide
flexible
working
hours
Reduce
company
expense
Allow employees
work remotely
34. Telecommuting
◦ Disadvantages of telecommuting
Employers
concerned
about exposing
of
company
confidentials
More difficult
for
employers to
monitor
work progress
