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screechingagendaNetworking and Communications

Oct 26, 2013 (3 years and 9 months ago)

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The architecture of the Internet allows for different networks to be connected together and is not
owned by any company and can be used by anyone. It all starts with the

backbone.



The
backbone of the Internet is

routes between large interconnected networks which are NSPs
.



Network Service Providers (NSPs) are companies that provide equipment that are linked to
network access points(NAPs)
. Examples of NSPs: AT&T, Sprint, UU
NET.



Network Access Points (NAPs) is a public exchange center in which ISPs are connected to.



Internet Service Provider (ISP) is a company that provides access to the Internet. An example of
an ISP is Time Warner’s Road Runner service.

o

There are many diffe
rent types of internet access that are provided by ISPs. They all vary
in speed and price.


Type

Price Range per
Month

Speed

Pros/Cons

Dail Up

$5
-

$20

56 KB per sec

Low Cost


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印敥T

DSL

$10
-

$30

1.5 MB per sec

Medium speed


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Cable

$30
-

$60

3 MB per sec

Medium/Fast
Speed


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捯獴

Satellite

$60
-

$100

700 KB per sec

Fast Speed


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䍯獴

Fiber
-
Optic

$40
-

$140

15 Mbps per sec

Fastest Speed


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Routers are used
in between a computer and the Internet Backbone. These are
devices that
locate pathways for transmission as well as connecting networks together.


The Internet allows the exchange of dat
a across a wide variety of different software and hardware.



What is TCP/IP?
TCP/IP stands for Transmission Control Protocol/Internet Protocol. When a
computer accesses the internet, the computer provides two layers of communication which
allows informatio
n to be transmitted on the internet.



Transmission Control Protocol (TCP)


manages information that is transmitted over the
internet.



Internet Protocol (IP)


Internet protocol is the computer’s address so information can be sent
to the proper locations.


The

Internet provides access to a large number of people on a daily basis right to their own home or
place of business.
A
lthough some of you may be still

confused on how the Internet works

through a
picture or definitions, I have

provided link below
that
goes to a video where many examples are
provided on how the internet works.

This will shed some light on what the definitions mean in a simpler
fashion.
You can click on the link or the picture below for the video.
Enjoy!

How does the Internet work?



LaBerta, Catherine.
Computers Are Your Future
. New Jersey: Pearson Education, Inc, 2012. Print.

http://www.youtube.com/wat
ch?v=i5oe63pOhLI&feature=youtu.be

http://www.techsoup.org/learningcenter/connections/archives/page10206.cfm