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NETWORK BASICS

Network A system of interconnected computers and computerized peripherals such as printers is called computer network. This interconnection among computers facilitates information sharing among them. Computers may connect to each other by either wired or wireless media. A computer network consists of a collection of computers, printers and other equipment that is connected together so that they can communicate with each other.  


Network application
A Network application is any application running on one host and provides a communication to another application running on a different host, the application may use an existing application layer protocols such as: HTTP(e.g. the Browser and web server), SMTP(e.g. the email-client). And may be the application does not use any existing protocols and depends on the socket programming to communicate to another application. So the web application is a type of the network applications. 
There are lots of advantages from build up a network, but the th…

Internet and Validating and Searching Information over Internet

 INTRODUCTION

How Validating Leads Will Improve Your Internet Marketing by Aaron ...The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link billions of devices worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies.  
No matter how much of technical knowledge you may have or you may not have but searching over internet will always help you in different aspect of life, such as learning new things, to be updated with latest activities, knowing about sports, searching for important information, knowing about places, persons, etc. So increasing skill set on searching would make you more capable to refine your search and achieve more accurate and relevant results. 
Nowadays, Internet is the best way to keep in touch with a lot of people, and at the same time Social Networking has changed the human relations the most since their existence. Social networking is the practice of expanding the number of one's business and/or social contacts by making connections through individuals, often through social media sites such as Facebook, Twitter, LinkedIn and You-tube. 

3.2 Chapter Objectives 

After going through this lesson, you will be able to understand: 
• Role of Internet and its applications. 
• Validating and searching techniques over internet. 
• Know about different Social Networking Sites 
• Create accounts and understand the use of Social Networking sites 
• Understand the use of Social Networking for reaching out to mass 

3.3 Understanding the Internet 

3.3.1 Definition of Internet 

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/ IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries a vast range of information resources and services, such as the interlinked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail. 

3.3.2 Use of Internet

Internet has been the most useful technology of the modern times which helps us not only in our daily lives, but also our personal and professional lives developments. The internet helps us achieve this in several different ways. 
For the students and educational purposes the internet is widely used to gather information so as to do the research or add to the knowledge of various subjects. Even the business professionals and the professionals like doctors, access the internet to filter the necessary information for their use. The internet is therefore the largest encyclopedia for everyone, in all age categories. The internet has served to be more useful in maintaining contacts with friends and relatives who live abroad permanently. 

3.3.3 Benefits of Internet 

• E-mail: Email is now an essential communication tools in business. With e-mail you can send and receive instant electronic messages, which works like writing letters. Your messages are delivered instantly to people anywhere in the world, unlike traditional mail that takes a lot of time. Email is free, fast and very cheap when compared to telephone, fax and postal services.

• 24 hours a day - 7 days a week: Internet is available, 24x7 days for usage.

• Information: Information is probably the biggest advantage internet is offering. There is a huge amount of information available on the internet for just about every subject, ranging from government law and services, trade fairs and conferences, market information, new ideas and technical support. You can almost find any type of data on almost any kind of subject that you are looking for by using search engines like Google, Yahoo, MSN, etc. 

• Online Chat: You can access many ‘chat rooms’ on the web that can be used to meet new people, make new friends, as well as to stay in touch with old friends. You can chat in MSN and yahoo websites. 

• Services: Many services are provided on the internet like net banking, job searching, purchasing tickets, hotel reservations, guidance services on array of topics engulfing every aspect of life. 

• Communities: Communities of all types have sprung up on the internet. It’s a great way to meet up with people of similar interest and discuss common issues. 

• E-commerce: Along with getting information on the Internet, you can also shop online. There are many online stores and sites that can be used to look for products as well as buy them using your credit card. You do not need to leave your house and can do all your shopping from the convenience of your home. It has got a real amazing and wide range of products from household needs, electronics to entertainment. 

• Entertainment: Internet provides facility to access wide range of Audio/Video songs, plays films. Many of which can be downloaded. One such popular website is YouTube. 

• Software Downloads: You can freely download innumerable, software like utilities, games, music, videos, movies, etc. from the Internet. 

3.4: VALIDATING AND SEARCHING INFORMATION OVER INTERNET 

Objective:  

• To know about the technique of validating information from internet 
• To use searching skills in internet 

  • Ask the students to read the vocabulary and the examples and ask them whether they can understand it or not, if not they have not understood explain it again to them. 
  • Ask the students to make 2 more examples of their own for different vocabularies given 
  • Start the class by asking students to give one website address each 
  • Ask them whether they can provide web address for different multiple companies 
  • Show them how to search for company address using internet and Google search engine 
  • Explain them about Facebook & LinkedIn profile of a company  
  • Show them how to search for a person personal or social profile 
  • Give them activity to use internet on searching for different profile 


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