NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet

NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet Solutions to each chapter is provided in the list so that you can easily browse throughout different chapters NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet and select need one. NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet Question Answers Download PDF. NIOS Study Material of Class 12 Data Entry Operations Notes Paper 336.

NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet

Also, you can read the NIOS book online in these sections Solutions by Expert Teachers as per National Institute of Open Schooling (NIOS) Book guidelines. These solutions are part of NIOS All Subject Solutions. Here we have given NIOS Class 12 Data Entry Operations Chapter 10 Introduction to Internet, NIOS Senior Secondary Course Data Entry Operations Solutions for All Chapter, You can practice these here.

Introduction to Internet

Chapter: 10

DATA ENTRY OPERATIONS

INTEXT QUESTIONS

1. Write True or False for the following:

(a) The World Wide Web is a collection of electronic documents called web pages.

Ans. True.

(b) Web server is an electronic document that links to another place in the same document or to an entirely different document.

Ans. False.

(c) POP stands for Post Office Protocel.

Ans. True.

(d) Electronic Mail is a paperless method of sending messages.

Ans. True.

(e) File Transfer Procedure is a commonly used protocol for exchanging files over any network.

Ans. False.

Q. 2. Fill in the blanks:

(a) FTP is used to promote ………………… files.

Ans. Sharing of files.

(b) ……………… is a network protocol used on the Internet.

Ans. Telnet.

(c) …………….. refers to the mail server.

Ans. find information.

(d) A search engine is a program designed to ………………. stored on a computer.

Ans. Find information.

(e) ………………. is the standard for resolving names to addresses.

Ans. DNS.

TERMINAL QUESTIONS

1. Explain the different types of connections available to get connect to Internet.

Ans. Types of Internet Connections:

(a) Dial-up: This is the most common basic type of connection available from ISPs (Internet Server Providers). In Dial-up connection, you use your computer, dial a phone number (provider by ISP) to get connected to server at Providers end through which you access Internet. It means you are not directly connected to Internet; you access the Internet through an Internet Service Provider.

(b) ISDN (integrated Services Digital Network): The process of connecting to server to access Internet is almost same as Dial-up, but it offers connectivity through the use of digital phone lines instead of Analog. It offers Internet connectivity at speeds of up to 128 Kbps, allows the user to receive or make calls simultaneously on the same line. ISDN comes through a regular telephone wire from the telephone pole on the street. The line combines two 64 Kbps channels to offer 128 Kbps bandwidth broken into three bands: One band for the ringing signal of your phone, one band for your telephone conversation, and one band for data transfer.

(c) Leased Line Connection (Direct Internet Access): A “permanent connection” between a computer system (single CPU or LAN, and the Internet). It is generally used by larger institutions, corporate and government agencies. It involves establishing your own Internet gateway (connection) and payment to have a direct full time line with the network. Your computers, in effect, become part of the Net. The main advantage of this connection is that: it is on line-24 hrs a day, seven days a week, (24×7) and provides faster access.

Dedicated links are established through an internet service provider who places a computer-controlled router (message director) at your site. A router is used to connect your local network to the Internet, allow all the members of network to have complete access to Internet.

(d) DSL (Digital Subscriber Line or Dedicated Service Line) Broadband Connection: DSL, an “always-on’ data connection is becoming widely available these days. It can provide an excellent Internet connection. It connects your home or office to the Internet through the same telephone wire that comes from telephone pole on the street. Like ISDN, with DSL, user can make and receive telephone calls while connected to the Internet. The difference between DSL and dialup / ISDN is that a DSL Internet connection uses a high-speed dedicated circuit filtering out.standard phone calls and Internet signals.

2. Explain Internet Addressing Schemes and Domain Name System.

Ans. Internet Addressing Scheme Addresses are just what they sound like a way to identify uniquely an area of the Net or an individual on the Net. The most accurate analogy would be to your home address. This address, when provide fully, uniquely identifies where you live. If someone wants to either send you something or visit you, they must know your address. It is the same way on the Internet. If someone wants to send you something, such as e-mail, they must know your address. If someone wants to retrieve something from a computer on the Internet, they must know the Domain name (unique name to identify a host on the Internet) or the IP address of the computer.

For instance www.nios.ac.in is the domain name of a host computer named nios in the academic area (.ac) belongs to geographical domain India (.in).

As you read in from the right, the name gets more specific until you reach the name of the individual host computer. The right most (in the above example .in – country code) represents either a type of organization or a country.

Example: www.yahoo.com

(.com – commercial organization)

DNS (Domain Name System): Every host (computer linked to Internet) has a unique host number called IP address. You can connect to any host through IP address only, but it is difficult to remember the 4-digit number of hosts. To resolve this, domain name is the only solution. Domain name, a unique name of the individual host computer on the Internet. Every computer on the Internet now have both a domain name and an IP address. To connect to any host through domain name requires some mechanism that will convert the domain name IP address. DNS, Domain Name System is the standard for resolving names to addresses. It is used mostly to translate between domain names and IP addresses. 

3. Define the following terminologies used in Internet:

(i) WWW.

(ii) Hyperlink.

(iii) Web page.

(iv) Website. and

(v) URL.

Ans. Here, we will discuss common internet terms to help you understand the relationship of various Internet technologies.

(i) World Wide Web (WWW): The World Wide Web (“WWW” or simply the “web”) is a collection of electronic documents (called web pages) that are linked together like a spider web. These documents are stored on computers called servers located around the world.

(ii) Hyperlink: It is an element in an electronic document that links to another place in the same document or to an entirely different document or other resource. Hyperlinks usually appear as underlined text and in a different color, but they may also appear as graphics, such as buttons to click. Hyperlinks may be used to link another place in the same page, or another page, to play an audio or video file, to download a file, to set up a message to an email address, and to link to other Internet resources.

(iii) Web Page: A web page (such as the one you are looking at now) is an electronic document written in a computer language called HTML (Hypertext Markup Language). Web pages can contain text, graphics, video, animation, and sound, as well as interactive features, such as data entry forms. Each page has a unique address known as a URL (Uniform Resource Locator) that identifies its location on the server. Web pages usually contain hyperlinks to other web pages.

(iv) Website: A website (often shortened to just site) is one or more web pages, belonging to a particular company, institute, government or an individual. The first page is called the home page, which acts like an index, indicating the content on the site. By default the home page is named as index.htm. From the home page, you can click hyperlinks to access other web pages.

(v) URL (Uniform Resource Locator): Every page on the web has a unique address, called Uniform Resource Locator, URL. A URL indicates where the web page is stored on the Internet. A sample URL might look like the following:

4. Yahoo and Hotmail offer free-email registration. Go to any of these sites and open an email account in your name. Send an email to a friend whose address you know.

Ans. How to send, read and reply to EMails By Internet:

(i) Type in the web address of your mail provider e.g. www.mail.yaoo.com – then login by using your user ID and password.

Setting up an Email account

Creating a new email account takes only a few minutes. You have to provide information about yourself and choose an account name and password. Your account name or ID becomes part of your email address. If you open a Yahoo account and choose “sk sharma” as your ID, your address becomes “[email protected].” Account names can use letters and numbers, such as “pkg2016,” It does not contain any spaces in between.

(ii) Sending a message:

Click on Compose button, it follows the screen:

E-mail messages are similar to letters, with two main parts:

The header contains the name and address of the recipient, the address of anyone who is being sent a copy (cc) and the subject of the message. The body contains the message itself.

(iii) In header section:

Type the e-mail address of the recipient in the “To:” field. For more than one person, e-mail id should be separated by commas. At least one e-mail ID is a must.

(iv) Type subject of your message in the “Subject:” field.

(v) Use the large text box to enter the contents of your message.

(vi) In the “Ce:” field, enter the email address of those to whom you would like to send a “carbon copy” of your message. All recipients of the message will be able to see that the person you designated as a “Ce:” has received a copy of the message.

(vii) In the “Bcc:” field, enter the email address of those to whom you would like to send a “blind carbon copy” of your message. This is nearly identical to the “Ce:” feature, except that “Bcc:” recipients are invisible to the “To:” and “Ce:” recipients of the message as well as to each other:

(viii) Click on Attach files to attaching file(s) and Insert Photos to attach Photos if required.

(ix) Click on send button to send the message.

Reading, Replying/ Forwarding a message

(i) Click on Check Mail or Inbox to Read/Reply a message, it follows the screen

(ii) Click on the subject of the message to read.

(iii) One can Reply/ Forward the message by clicking appropriate button.

5. What do you mean by a search engine?Mention two important search engines available on the Internet? What are basic tips to use to get the best results while searching?

Ans. 

Search Engine

The Internet is an amazing resource that provides quick access to all sorts of information. The amount of information, however, is so vast that being able to find what you are looking for is a daunting task. Search engines are the answer.

A search engine is a program designed to help find information stored on a computer system such as the World Wide Web, or a personal computer. The search engine allows one to ask for content meeting specific criteria (typically those containing a given word or phrase) and retrieving a list of references that match those criteria.

Some of the important search engines are:

(i) Google (http://www.google.com).

(ii) Yahoo (http://www.yahoo.com).

(iii) MSN Search (http://search.msn.com).

(iv) Ask Jeeves (http://www. askjeeves.com).

(v) Alta Vista (http://www.altavista.com).

OTHER IMPORTANT QUESTIONS