ICT STD IX CH 6 : Introduction to internet

Q1. Fill in the blanks

1)      Network in the world are connected to each other due to Internet.

2)      Long form of WWW is World Wide Web.

3)      HTML stand for Hyper Text Mark up Language.

4)      The software program used to view different web pages is known as Browser.

5)      Email stands for Electronics Mail.

Q2.True or False

1)      Email is the one of the services provided by Internet. True

2)      ARPANET has been invented and started for American People. False

3)      Every website has a unique address of its own. True

4)      All web pages are linked with each other using hyperlinks. True

5)      Depending upon type of information and need of producer websites can be paid or can be completely free for the user.True

Q3. Multiple choice[Single Answer]

1)      The acronym ‘FTP’ stands for

Ans-> (c) File Transfer Protocol.

2)      The network connecting several computers all over the world is known by the name.

Ans-> (b) Internet

3)      A system of internet servers that support HTML formatted documents connected world wide is known as

Ans->(a) World wide Web

4)      The first page displayed on the computer screen when user visits a website first time is

Ans->(c ) Home page

Q4. Multiple choice[Two correct Answer]

1)      To access internet following browsers can be used

Ans->     (a) Internet Explorer (b) Opera

2)      Protocols for internet are

Ans-> (b) TCP  (c ) IP

Q5. Answer in Brief

1)      Explain any four buttons from mail toolbars.

Ans->

	Archive Archiving removes messages from your inbox, but keeps them in your account so that you can always find them later.
	Report spam To remove spam from your inbox
	Delete  To delete a message, click the Trash icon to move the message to the Trash folder
	Labels Labels help you organize your messages into categories -- work, family, to do, read later, jokes, recipes

2)      What are the advantages of email?

ü  Ans-> You can communicate quickly with anyone on the Internet. Email usually reaches its destination in a matter of minutes or seconds.

ü  You can send letters, notes, files, data, or reports all using the same techniques. Once you learn how to use your email program, everything is sent the same way.

ü  You can deal with your email at a convenient time. You don't have to be interrupted when email arrives, and you can read it or work with it when you have the time.

ü  You don't have to be shy about using email to communicate with anyone

ü  The cost to you for email has nothing to do with distance, and in many cases, the cost doesn't depend on the size of the message.

ü  We can save a lot of tree via paperless communication environment.

3)      List various activities performed using Internet.

Ans->We are doing the following activity through internet

a.       Send or read email

b.      Use a search engine to find information

c.       Search for a map or driving directions

d.      Look for info on a hobby or interest

e.      Research a product or service before buying

f.        Check the weather

g.       Look for health/medical info

h.      Get travel info

i.         Get news

4)      List the different commonly used internet browsers.

Ans-> Google Chrome , Firefox, and Internet Explore, safari and opera  are the most used browsers today

5)      List various functions of a Web Browser.

Ans->- Web browser functions are to provide the resources or information to the user when asked by them.

It processes the user inputs in the form of URL like http://www.google.com in the browser and allows the access to that page.

URL is used to identify the resources and fetch them from the server and displays it to the client.

It allows the user to interact with the web pages and dynamic content like surveys, forms, etc.

It also allows the user to navigate through the complete web page and see its source code in the HTML format.

It provides security to the data and the resources that are available on the web that is by using the secure methods.

Q6. Write  a short note on

1)      Web sites

Ans ->A website is a set of related web pages served from a single web domain. A website is hosted on at least one web server, accessible via a network such as the Internet or a private local area network through an Internet address known as a Uniform resource locator. All publicly accessible websites collectively constitute the World Wide Web.

A webpage is a document, typically written in plain text interspersed with formatting instructions of Hypertext Markup Language (HTML, XHTML). A webpage may incorporate elements from other websites with suitable markup anchors.

2)      Disadvantage of email

Ans -> The disadvantage of emails are

1)      Recipients must also be an email user.

2)      Until a mail box is checked there is no way of knowing that a message has arrived.

3)      The user must have access to modem and a phone line.

3)      History of Internet

Ans -> The Internet originated in the late 1960s when the United States Defense Department developed ARPANET(Advanced Research Projects Agency network), an experimental network of computers designed to withstand partial outages such as a bomb attack. The agency sought to create a web of computers that could continue to communicate with each other, even if some of the computers were disabled. In the mid-1980s, when desktop computer workstations became increasingly popular, organizations wanted to connect their local area networks (LANs) to ARPANET. If computers could link together and share resources, everyone would benefit.

Q7. Answer the following

1)      Explain the concept of web browser.

A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI/URL) and may be a web page, image, video or other piece of content. Hyperlinks present in resources enable users easily to navigate their browsers to related resources.

Although browsers are primarily intended to use the World Wide Web, they can also be used to access information provided by web servers in private networks or files in file systems.

The major web browsers are Google Chrome, Mozilla Firefox, Internet Explorer, Opera, and Safari.

2)      Explain the difference between www and internet.

Internet is a global system of interconnected computer network. But WWW is one of the service that run on the internet. The World Wide Web  is a system of interlinked hypertext documents accessed via internet. In contrast, Internet is a mechanism to provide the service like WWW, Email e.t.c

3)      Match the pairs.

Column  A	Column B
1)      Internet 2)      Server 3)      Forward 4)      http 5)      Opera	1)      Network of networks 2)      Provides services 3)      One of the main Toolbar 4)      Protocol 5)      Web Browser