3.2 The Internet 3.2.1 Overview of the Internet (Introduction to the…
3.2 The Internet
3.2.1 Overview of the Internet
(Introduction to the Internet)
The Internet is a worldwide collection of
networks that connects millions of businesses,
government agencies, educational
institutions, and individuals.
It is a global system made of thousands of
privately and publicly owned computers and
*Overview of the Internet
Internet is composed of more than 750 million
Host or server is a computer that has two-way
access to other computers:
–Replies to those requests
-Both public and private organizations own
networks on the Internet.
Each organization is responsible only for
maintaining its own network.
No single person, company, institution, or
government agency controls or owns the Internet
World Wide Web Consortium (W3C)
is an international community that work together to develop standards and guidelines for the Internet.
Expose people to risk of information theft
when they use Internet applications such as
email, online banking or
Expose users’scomputers to malware threats such virus virus, worm, or trojan horse which can
easily infect computers through the Internet.
Expose people to pornography and
inappropriate content which can lead to bad
Cause addiction to surfing, online gambling, social networking, and gaming which may result in social isolation among youngsters.
A private network of an organization which uses internet technologies to share organization’s information or operations with its employees
It only provides access to employees within an organization
Facilitate communication and operations among employees within an organization
Intranet applications include phone
directories, email address, event calendars,
procedure manuals, employee benefit
information, and internal job postings.
Example of intranet:
–KMK Intranet –provides email, Student
information system, Web server, printer server,
and access to the Internet.
A private network ofan organization that securely share parts of organization’s information with its suppliers, vendors, partners, customers, or other organizations.
It provides limited access to authorized people
outside the company.
Facilitate communication and business
operations between the organization and
related people or organizations.
Package shipping company that allow their
customers to access their intranet to print
shipment bills, schedule pick-ups, and even track shipped packages.
Provide convenience to people through online
applications such as online shopping, online reservation, and online payment.
Provide unlimited access to education materials
such as online learning videos, ebook, and educational websites
Helps people to stay connected with friends and family through social media and apps such as facebook, twitter, whatsapp, skype, and facetime
Provide free entertainment
such as online games and movies
information on all aspects of
life which can be find easily using search engines
Makes communication become cheaper, quicker, and more efficient using email, instant messaging, video conference,social networking websites and various mobile applications.