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Contents
Definition of Internet
History of Internet
Basic services of Internet
Internet domains
Uses of Internet
Disadvantages of Internet
Statistics
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What is Internet
The Internet is the global system of
interconnected computer
networks that use the
internet protocol suits
(TCP/IP) to link billions
of devices worldwide.
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The history of InternetYOU TUBE & MORE . . .
FACEBOOK
GOOLE
YAHOO
WWW
INTERNET
ETHERNET
FTP & TCP/IPARPANET
PACKET SWITCHING
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Packet Switching
Packet switching is a digital networking communications method that groups all
transmitted data into suitably sized blocks, called packets which are transmitted
via a medium that may be shared by multiple simultaneous communication
sessions.
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ARPANET
ARPANET was the network that became the basis for the Internet. Based on a
concept first published in 1967, ARPANET was developed under the direction
of the U.S. Advanced Research Projects Agency (ARPA).
In 1969, the idea became
a modest reality with the
interconnection of four
university computers. The
initial purpose was to
communicate with and
Share computer resources among
mainly scientific users at the connectedInstitutions. ARPANET took
advantage of the new idea of
sending information in small units called PACKETs
that could be routed on different paths and reconstructed at their
Destination.
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Ethernet
A system for connecting a number of computer
systems to form a local area network, with
protocols to control the passing of
information and to avoid
simultaneous transmissionb two or more s stems.
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World Wide Web
The World Wide Web (www) is an open source information space where
documents and other web resources are identified by URLs, interlinked by
hypertext links, and can be accessed via the Internet. The Web consists of pages
that can be accessed using a Web browser. The Internet is the actual network of
networks where all the information resides. Things like Telnet, FTP, Internetamin Internet Rela Chat IRC and e-mail are all art of the
internet, but are not part of the World Wide Web. The Hyper-Text
transfer Protocol (HTTP) is the method used to transfer Web
pages to your computer. With hypertext, a word or phrase can
contain a link to another Web site. All Web pages are written in
the hyper-text markup language (HTML), which
works in conjunction with HTTP.
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Basic Services of Internet
Remote login (Telnet)
E-mail
File Transfer (FTP)Network news
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Telnet
Telnet is an application layer protocol used on the internet or local area
networks to provide a bidirectional interactive text-oriented communication
facility using a virtual terminal connection.
Telnet was developed in 1969 and standardized
Internet Standard STD 8, one of the first Internet
standards. Historically, Telnet
provided access to a command-line
interface (usually, of an operating
system) on a remote host.
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E- mail
Email, short for "electronic mail," is one of the most widely used features of
the internet, along with the web. It allows you to send and receive messages
to and from anyone with an email address, anywhere in the world. When you
configure an email account, you must define your email address, password
and the mail servers used to send and receive messages.
Fortunately, most webmail services configure
your account automatically, so you only need to
enter your email address and password.
Besides the email address and password,
you may also have to enter the incoming and
outgoing mail servers and enter the correct
port numbers for each one.
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File Transfer
The file transfer tool FTP is another client-server application, used to retrieve
files from a remote machine. Two kinds of access are possible:
Identified (with account and password) and
Anonymous (no account or password required).
Most public archive sites operateanon mous FTP servers. Until earl 1995
FTP data accounted for by far the
largest amount of traffic on the Internet
(about one third of the total traffic in bytes).
A related service Archie provides
an indexing facility for anonymous FTP archives,
making it easier to find FTP
resources.
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Network News Transfer Protocol
The Network News Transfer Protocol (NNTP) is an application protocol used for
transporting Usenet news articles (net news) between news servers and for
reading and posting articles by end user client applications
Network News is the Internet equivalent
of a discussion group or bulletin board.
News is organized hierarchically into
broad topics called newsgroups
dealing with particular themes,
for example comp.lang.c++ for the C++programming language.
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Internet Browsers
An internet browser is the program that you use to access the internet and view
web pages on the computer. Although browsers are primarily intended to use the
World Wide Web, they can also be used to access information provided by web
servers in private networks or files in file systems. The major web browsers are
Firefox, Internet Explorer/ Microsoft Edge, Google Chrome, Opera, and Safari.
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Internet Search Engines
Google, Excite, Lycos, AltaVista, Infoseek, and Yahoo are all search engines.
They index millions of sites on the Web, so that Web surfers like you and me
can easily find Web sites with the information we want. By creating
indexes, or large databases of Web sites (based on titles, keywords, and the
text in the pages), search engines can locate relevant Web sites when users
enter search terms or phrases. When
you are looking for something using a
search engine, it is a good idea to use words
like AND, OR, and NOT to specify your search.
Using these boolean operators, you can usually
get a list of more relevant sites.
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Internet Domain
A domain name is an identification string that defines a realm of
administrative autonomy, authority or control within the Internet. Domain
names are formed by the rules and procedures of the Domain Name System
(DNS). Any name registered in the DNS is a domain name.
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Uses of Internet
Now a days Internet is using for anything everywhere . Following are the main
areas of internet usage:
Research
Education
Information
Entertainment
Social network
Communication
Commerce & trade
Financial transactions &
many more
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Disadvantages of Internet
Although there are many advantages, internet has some disadvantages as listed
below:
Internet frauds
Pornography
Wastage o t me
Cheater sites
Wrong information
Hackers & virus
Addiction to Internet &
many more
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Statistics
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Created by
een ohny