Wednesday, March 19, 2014

INTERNET

 Internet is a communication network which bridges all the small computer networks
worldwide as a whole. Internet is based upon Internet technology, in particular World Wide Web
(WWW), to build Information System within organization or enterprise to accomplish
standardization and automation. Fundamentally, it means network computing environments
which let the users share the information through the Internet and Web browsers. Ultimately, it
allows a certain organization to build a Groupware within Web environment at low cost on top of
existing network infrastructure. By doing this, closed organization network would be
interconnected with existing worldwide Internet, which results in diverse information that
strengthens competitive advantages of the organization. Basically, it runs on top TCP/IP and
HTTP and filters out any illegal access through firewall.

Where the Internet connects people and organizations and information sources by using
common protocols to link computers on a public and open – to – all basis, an Internet uses the
same common protocols for internal company or group purposes. Instead of adopting a common
proprietary standard for its communications, information storage and presentation, etc., the
company (or any group of people or companies) decides to use Internet standards and methods.

An Internet can be defined as a network connecting an affiliated set of clients using
standard Internet protocols, esp. TCP / IP and HTTP or as an IP – based network of nodes behind
a firewall, or behind several firewalls connected by secure, possibly virtual, networks.
In general, a web is an unstructured client / server network that uses HTTP as its
transaction protocol. The World Wide Web comprises all HTTP nodes on the public Internet .An
internal web comprises all HTTP nodes on a private network, such as an organization’s LAN or
WAN. If the organization is a corporation, the internal web is also a corporate web.
If a corporate web connects two or more trading partners, it is often referred to as a
business – to – business web, or an extranet.
Note that internal webs – also known as intranets – are only logically “internal “ to an
organization. Physicall

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