2. INTRODUCTION
•An Internet service provider (ISP), also sometimes
referred to as an Internet access provider (IAP), is a
company that offers its customers access to the
Internet.
•The ISP connects to its customers using a data
transmission technology appropriate for delivering
Internet Protocol packets or frames, such as dial-up,
DSL, cable modem, wireless or dedicated high-speed
interconnects
3. End User to ISP Connection
ISP employ many technologies for
users to connect to their network such
as-
Dial-up
DSL ( Digital Subscriber Line)
broadband wireless
Integrated Services Digital Network
(ISDN)
4. ISP Interconnection
Just as their customers pay them
for Internet access, ISPs themselves
pay upstream ISPs for Internet
access.
An upstream ISP usually has a
larger network than the contracting
ISP and/or is able to provide the
contracting ISP with access to parts of
the Internet the contracting ISP by
itself has no access to.
5. Peering
ISPs may engage in peering, where
multiple ISPs interconnect at peering
points or Internet exchange points
(IXs), allowing routing of data between
each network, without charging one
another for the data transmitted—data
that would otherwise have passed
through a third upstream ISP, incurring
charges from the upstream ISP.
6. Types of ISP
Types of ISP-
Virtual ISP
Free ISP
8. CONCLUSION
Internet service is bound to be
improved in terms of cost and speed
with the entry of new industrial giants
in the field.
But the true benefit of Internet service
will be when even the remote parts of
World will be able to access the
quality Internet, only then World will be
truly connected.
