262Global village
Technology is helping to bring our planet together.
People on the other side of the world live up to
12,500 miles (20,000 km) away, but you can email
or phone them in seconds. Hundreds of millions of
computers in more than 200 countries are now
connected into a giant network called the Internet.
INTERNET
The Internet is the name for the telephone, satellite,
and cable connections that link the world’s computer
systems. In theory, every computer in the world can
be indirectly connected to every other one. There is
no central control system for the Internet. This means
it can survive major failures very easily.TECHNOLOGY
(c) 2012 Dorling Kindersley. All Rights Reserved.(c) 2012 Dorling Kindersley. All Rights Reserved.