Post on 13-Apr-2017
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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 : -
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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.
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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.
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
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:
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
ADDRESS: SCO -15, Dayal Bagh, Near Hanuman Mandir Ambala Cantt-133001 HaryanaPh. No.: 9729666670, 8222066670 &0171-4000670Email ID: info.jatinbatra@gmail.comWebsite: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com
Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com