Computer Science
Class-VIII
Chapter-8 Communication of the Net
1. E-mail also carries_________ that can damage your computer.
a. gifts b. bacteria's c. viruses d. software
Answer: Viruses
2. Internet is used to send cards called___________.
a. E-shop b. E-mail c. E-greeting d. E-commerce
Answer: E-greeting
3. Internet can be used for _______ .
a. downloading b. chatting c. sharing d. all of these
Answer: all of these
4. The _________ channel is the link between the two computers.
a. digital b. networks c. sharing d. communication
Answer: networks
5. Sites which offer chat facility are called_________.
a. instant messengers b. chat box c. downloader's d. installer
Answer: Instant messengers
6. To learn in an environment where the teacher and students are not needed at the same place is called_______.
a. chatting b. online learning c. online shopping d. online programming
Answer: Online learning
B. Fill in the blanks:
1. ___________ the interent is the most common use.
Answer: Browsing
2. E-greeting cards are both ________ and __________.
Answer: Free, Paid
3. _________ is very popular for many reasons.
Answer: E-marketing
4. Chat is a text based________ that is live on in real time.
Answer: Communication
5. IRC ismainly designed for ___________ in discussion forums.
Answer: Group communcation
6. __________ are short forms of words that are commonly used while sending e-mails.
Answer: Acronyms
7. A ___________ is like a discussion group where people post information on a particular topic.
Answer: Newsgroups
8. Gtalk and yahoo messenger are_________ chats software.
Answer: Popular
C. Answer the following questions:
1. What are the uses of IM language?
Answer: Users sometimes make use of internet slang or text speak to abbreviate common words or expressions to quicken conversations or reduce keystrokes. The language has become widespread, with well known expressions such as lol translated over to face to face language.
2. What is an instant messenger?
Answer: Instant messaging is a set of communication technologies used for text based communication between two or more participants over the internet.
3. Give two examples for each of the following:
i. instant messenger ii. e-greetings sites
Answer:
i. Instant messenger: 1. Facebook messenger, 2. Yahoo messenger
ii. E-greetings sites: 1. www.E-cards.com 2. hallmark.com
4. What is communication on the Net?
Answer: Communication is the most popular use of the internet, with e-mail topping the list of all the technologies used.
5. Write the name of the mode of communication.
Answer: The most common types of chat are:
1. IRC-Internet Relay Chat
2. Web page chat
3. Instant Messenger chats
D. Answer the following questions:
1. What are acronyms? Give example.
Answer: An acronym is an abbreviation formed from the initial components in a phrase or a word. These components may be individual letters or parts of words.
Example:
ABT: About
DIY: Do it yourself
ASAP: As soon as possible
2. How is internet useful in the field of education?
Answer: Many educational institutes from all over the world now day provide online educational facility. Internet makes possible to learn in an environmnet where the teachers and the students are not needed at the same place.
3. Write a short note on video conferencing.
Answer: Video conferencing is a method of communication through which people at different corners of the world can get together and have a meeting in which they are not physically present in one place.
4. Define newsgroups.
Answer: Newsgroups is a worldwide platform for exchanging ideas and information by common minded people. People sharing similar ideas, interests can put forward their views for other people.
5. Define netiquettes.
Answer: Netiquettes can be defined as a set of conventional rules to be followed for correct behaviour on the internet. These rules are considered appropriate behavioural rules for a majority of internet users.
6. Describe chat as a means of chatting on the net.
Answer: Chat is a text based communication that is live or in real time. When taling to someone in chat any typed text is received by other participants immediately. Some popular chat softwares are:
1. Yahoo messenger
2. Gtalk
3. Window live messenger
7. What are emoticons?
Answer: Symbol that you type in an email or text message to show how you fee. For example the emoticon :-) means happy or friendly. An emoticon is a symbol or a combination of symbols that we can use to express an emotion in a message.
Some other Links:
CBSE-Computer-Science-Class-8-Exercise-1
CBSE-Computer-Science-Class-8-Exercise-2
CBSE-Computer-Science-Class-8-Exercise-3
CBSE-Computer-Science-Class-8-Exercise-4
CBSE-Computer-Science-Class-8-Exercise-5
CBSE-Computer-Science-Class-8-Exercise-6
CBSE-Computer-Science-Class-8-Exercise-7
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