3. The internet is a world
wide system of
computer networks. It is
a common part of our
daily lives. Once you log
onto the internet, you
enter a virtual world.
You can visit places, talk
4. In 1961, an American computer
scientist discovered a way to
share information from one
computer to another and
called it a network. In 1969, a
network linked two
computers at two American
Universities together.
Following this trial, more
5. The name 'internet' was first
used in 1974. It connects all
the networks together.
In 1989, the world wide web
was invented by a British
researcher who developed a
method to combine pictures
,music ,videos ,symbols
,columns , words and other
6. It is estimated that by
2020, there will be 2
thousand million users
which is about 400 times
the number of people
living in Singapore. This
also means that 30% of the
7. Advantages
It allows information to
be obtained quickly.
It can be used anywhere
with a Web connection.
It improves
communication across
8. Disadvantages
You do not know who you
are talking to online.
When there are too many
users, there might be a
‘traffic jam’ online.
The computer might be
