7th Class Computers Science Networking Uses of Internet

     Uses of Internet

Internet is a global network. Basically Internet is a type of WAN that uses TCP/IP protocol. Protocol is a set of rules. If you want to use the Internet on your PC you need an Internet connection and a browser. There are number of browsers available in market, such as Internet Explore and Mozila firfox. Basically browser is software that enables a GUI to open a Website.  

   Internet allows you to do the following tasks: 

• Email: Using Internet you can send any information, greeting and any type of file, such as picture to any location of the world.
• Ticket booking: Using Internet you can book your railway ticket, air ticket and movie ticket. You do not need to go anywhere, just connect your corn puter with the Internet and book whatever you want.
• Banking: Using Internet you can check the status of your bank account. You can also transfer money from one account to other account.
• Searching: It is one of the important features through which we are able to grasp knowledge of any thing through any of the search engine. Google is one of the common search engines through which we can get any information regarding any topic, organization, and many other things can be learnt through this.
• Chatting: Using Internet you can chat with your friend in live environment. There are various chatting tools available in market, such as Google Talk.  
• E-learning: E-learning is a new revolution in learning world. Using Internet you can learn any subject anywhere anytime.  

 Intranet is the world largest WAN. To setup a WAN environment you can use ......................transmission media.

(A) Fiber optic                                                  

(B) Telephone line

(C) Satellites                                      

(D) All of these

(E) None of these  

Answer: (d)

Explanation

Correct Option:

(D) To setup a WAN environment you can use fiber optic, telephone line and satellite transmission media.

Incorrect Options:

Therefore, option (D) is correct and rest of the options is incorrect.      

 Internet has become an essence for modern man. Which one of the following is/are the advantages of Internet?

(A) Email                                                             

(B) Online Chatting

(C) Online banking                                          

(D) All of these

(E) None of these  

Answer: (d)

Explanation

Correct Option:

(D) Email, online chatting and online banking are advantages of Internet.

Incorrect Options:

Therefore, option (D) is correct and rest of the options is incorrect.  

  Using Internet you can chat with your friend online. Which of the following chatting tools is/are available on the Internet?

(A) Google talk                                                                 

(B) Rediff Bol

(C) Yahoo Messenger                                                   

(D) All of these

(E) None of these  

Answer: (d)

Explanation

Correct Option:

(D) Google Talk, Rediff Bol, and Yahoo Messenger all allows online chatting.

Incorrect Options:

Therefore, option (D) is correct and rest of the options is incorrect.  

• VPN (Virtual Private Network) is a type of network which is used by mobile companies.
• ISP is an organization that provides Internet connections.
• DARPA (Defense Advanced Research Projects Agency) launched the first Internet program.    

• Router: Is also a network connection device.
• Workstation: Is a computer that is designed for technical or scientific applications.
• NIC: Is a circuit board equipped with microchips that are physically installed within an active network node.    

• A computer network is a group of computers which are interconnected.
• In the client-server system, client is a computer application that runs on a local computer and requests service from a remote computer.
• Server is a computer application that runs on a remote computer and provides the requested service to a client.
• A switch is a connection device that is used to develop computer network.
• Switches are more expensive than bridges.
• The NIC (Network Interface Card) is also called Ethernet Networking card.  

   Abbreviations

CPE           -           Customer Premises Equipment

NIC            -           Network Interface Card

ECC           -           Error Correcting Code