How We Connect
“Connectivity” is a concept related to using computer
networks to link people and resources. You can connect your microcomputer by
telephone or other telecommunications links to other computers and information
sources almost anywhere. With this connection, you are linked to the world of
larger computers and the Internet.
In the past, wired devices were required to be able to
connect to the Internet. In the last five years, there has been a dramatic
change in connectivity. Today, there is widespread use of mobile and wireless
communication devices for gaining access to the Internet. This is just the
beginning of the “Wireless Revolution” which will change the way we communicate
and use computer technology in a big way.
An “Internet Service Provider” is a company that provides
access to the Internet for a monthly fee. The service provider gives you a
software package, username, password and access phone number. The providers are
already connected to the Internet and provide a path or connection for
individuals to access the Internet. Colleges and universities mostly provide
free access to students. Some companies also offer free Internet access.
“National Internet Service Providers” are providers who
operate primarily on a National level. They are basically large telecom
companies that have nationwide coverage and operations. They provide access
through standard telephone lines or cable connections.
“Wireless service providers” do not use telephone or cable
lines. They provide Internet connections with wireless modems and other
wireless devices.
If a computer is part of a local area network (LAN) that has
connectivity to the Internet, you can access the Internet through the LAN.
Using a telephone, you can connect your Personal Computer
(PC) to the Internet. To do so, you need a device called the “Modem”. Using the
modem and dialer software, the PC connects to the server of an Internet Service
Provider (ISP). This is how the PC establishes a connection to the Internet
through an ISP.
You can also connect to the Internet using a leased line. In
this method, the data transmission rate is much higher. Besides these, there
are also other options for connecting to the Internet. Examples are DSL, Cable
Modem, Set Top Boxes and other propriety solutions.
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