DAV Class 7 Computer Chapter 7 Basics of Internet, Notes / Question Answer / Solution

DAV Public School Class 7 Computer CHAPTER 7 Basics of Internet, DAV Class VII Computer Basics of Internet

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A. Answer these following questions.

1. what is network ?

Ans: network is a collection of inter connected computers that allow to share hardware and software resources.

2. what is internet ?

Ans: internet simply stands for interconnected networks. It is a global system of networks Developed around  1960-1970.

3. what is www ?

Ans : www stands for world wide web. It is service of internet that consists of diff erent electronic documents formatted in html language.

4. who is the father of www ?  when does it came into existence?

Ans: www came into existence around 1990 by Englishman sir tim berners- lee in geneva.

5. what is web browser ?

Ans : A web browser is a software application for accessing information on on the www including web pages. It is an interface between web server and www.

6. write name of some popular web browsers .

Ans : Mozilla firefox, google chrome, microsoft internet explorer , apple safari and  the opera Browser etc.

7. what is web server ?

Ans : it is a computer that stores multiple websites and delivers requested web pages to  Your computer.

8. what is web site ?

Ans : website is a collection of related web pages and associated items for eg. ( doc, audio, img ).

9. what do you mean by web page ? write its types.

Ans : A web page is an individual html document that is accessed by entering a url address. There are two types of web pages:  static and dynamic web page.

10. what do you understand by home page ?

Ans: home page is the first page of a website. It shows the links to other document in that website.

11. What do  you mean by URL ?

Ans : URL stands for “ uniform resource locator. “ a url is the address of a specific webpage On internet. It has two elements. Protocol identifier and resource name .

12. What is blogs?

Ans. A blog is a discussion or information site published on world wide web. It consists of various posts placed in reverse chronological order. The blog can contains text, photos, videos, music and audio.

13. Write the difference between Blog and Writing a Daily Diary.

Ans. The people who maintain a daily diary need not share their thoughts  and p ersonal experience with the public.

But , a blog is like an online diary that is created by an individual to share thoughts an ideas with the general public.

14. How many types of Blogs?

 Ans. There are different types of Blogs.

1. Personal Blog

2. Corporate Blog

3. Media blog

B. Answer these following questions.

1. What is E-mail?

Ans. E-Mail is a system of receiving, sending and storing messages through online.

2. Write the advantages of E-Mail.

Ans. Advantages of E-Mail.

a. Easy to use.

b. Fastest means of communication.

c. Easy to compose.

d. Eco-friendly

e. Multiple uses

3. What is video conferencing? Write all Hardware devices name which is required for video conferencing?

Ans. Video conferencing allows users in different locations to hold face-to-face meetings without having to move to a single location.

Hardware devices required for video conferencing:-

a. Video input- webcam

b. Video output- monitor, television, projector

c. Audio input- microphones

d. Audio output- speaker

e. Data transfer- LAN or Internet

4. Write the advantages of video conferencing.

Ans. Advantages of video conferencing.

a. No time constraint

b. Reduced travel cost

c. Easy Communication

5. Define:-

1) Social Networking- Social networking helps us to connect with other and build a social relation without being close geographically. Ex. Facebook, Twitter, Google+ etc.

Advantage:

a. To stay in touch

b. Sharing information

c. Raising awarness

2) E-groups:- E-groups is a feature in many social network services where people with similar interest share information with each other.

3) Newsgroup:- A newsgroup is a platform where user can discuss and share their views about a particular subject.

4) E-commerce:- E-commerce is the buying and selling of goods and services, or transmitting of funds or data, over electronic network.

6. Write different type of Internet service-

Ans. Different type of Internet service.

a. E-banking

b. E-Reservation

c. E-Group

d. E-Shopping

e. E-Commerce

f. E-Learning

g. Social Networking

h. E-Mail

i. Chat

j. Video conferencing.