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 The INTERNET is the network of Computers, Which links
many different types of computers all over the world
ARPANET : Was the first WAN and had only four sites in 1969
 In 1989, the U.S. government lifted restriction on the use of
INTERNET, and allow its usage for commercial purposes as well

4. Ph. No.: 8222066670, 4000670 Website:
 Electronic Mail (E-mail)-
Allow user to send a mail (message) to another internet user in
any part of the world in a near real time manner
 File transfer Protocol (FTP)
Allow user to move a file from one computer to another on
internet.
 Telnet –
Allow a user to log into another computer somewhere on the
internet

5. Ph. No.: 8222066670, 4000670 Website:
E-mail is a rapid and productive communication tool because:-
 It is faster than paper mail
 Unlike telephone, The persons communicating with each other need
not to be available at the same time
 Unlike fax document, Email documents can be stored in a
computer and be easily edited using editing programs

6. Ph. No.: 8222066670, 4000670 Website:
File Transfer Protocol
 Moving a file from a remote computer to ones own computer is
known as Downloading.
 Moving a file from ones own computer to a remote computer is
known as uploading
 Anonymous FTP site in a computer allows a user to log in with the
username of anonymous and password that is user’s email address
 Anonymous FTP sites are publically accessible because they can be
accessed by user on internet.

7. Ph. No.: 8222066670, 4000670 Website:
Telnet
 Using the computing power of the remote computer
 Using a software on the remote computer
 Accessing remote a computers data based or achieve
 Logging into once own computer from another computer
Some common uses of telnet service are : -

8. Ph. No.: 8222066670, 4000670 Website:

9. Ph. No.: 8222066670, 4000670 Website:
The World Wide Web
 World wide web or W3 is the most popular or promising methods
of organizing and accessing information on the internet
 Hypertext is the new way of information storage and retrieval that
enables authors to structure information in novel ways.
 A properly designed hypertext document enable this by using a
series of link
 A link is a special type of item in a hyper text document connecting
a document to another document
 Hypertext document on internet are known as Web pages.

10. Ph. No.: 8222066670, 4000670 Website:
Internet Search Engines
 Internet search engine is an application, which help user to locate web sites
containing useful information and references.
 To search Information
 A user types the description of the information using the using interference of the
search engine
 The search engine then searches the requested information on the WWW and
return the results to the user
 Results enable the user to locate the requested quickly from the last ocean of
information available on the internet

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Major Element of internet search engines
 Search Engine Interface
enable user to provide description of desired information to the search engine
Search engine may allow specification of simple keywords and phrases, combination of keywords
and phrases using Boolean operators and exclusion / inclusion operators, and title and URL limiters
 Information Discoverer
Discoverer information from the WWW and creates a database for the search engine
Search engine use the database to locate useful information during the search process
 Presenter of Search Results
Search engine often list search results in accordance to a relevance score
Relevance source reflect the number of times a search term appears in a wen page
Some search engine also allows user control relevance score by giving different weights.

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Uses of Internet
 On-line communication
 Software sharing
 Exchange of view on topics of common interest
 Posting of information of general interest
 Organization promotion
 Product promotion and feedback about products
 Customer Support service
 On-line Shopping
Some important current strategic of the Internet are:

15. Ph. No.: 8222066670, 4000670 Website:

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ADDRESS:
SCO -15, Dayal Bagh,
Near Hanuman Mandir
Ambala Cantt-133001
Haryana
Ph. No.: 9729666670, 8222066670 &0171-
4000670
Email ID: info.jatinbatra@gmail.com
Website: www.batracomputercentre.com

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