Computer Assignment Solution Class 9 CBSE

Q1. Mr. Ravi and Mr. Manoj wants to send a song to each other. Both have a mobile phone. Both want to send a song through mobile phones. What network technology is needed to share a song through mobile phone? Describe it.

Answer: Bluetooth technology is used for sharing data like audio, video etc. Using this technology, users of cellular phones initiate the sending or receiving data.

Thus, Mr. Singh and Mr. Tyagi can send a song to each other by using Bluetooth technology easily within a short time.

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Q2. What is e-commerce? Write a short note on it & name some websites related to it.

Answer: 

An ecommerce website is any site that allows you to buy and sell products and services online. Examples of ecommerce websites are as follows: 

1) Amazon:  https://www.amazon.in/

2) Flipkart: https://www.flipkart.com/

3) Jabong: https://wwwjabong.com

4) Snapdeal: https://www.snapdeal.com/

5) Myntra: https://www.myntra.com/

6) Shopclues: https://www.shopclues.com

7) PayTm: https://paytm.com/

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Q3. What do you understand about search engines? List all popular search engines in the market. 

Answer:

A search engine is a software program that helps people find the information they are looking for online using keywords or phrases. Search engines are able to return results quickly by scanning the Internet continuously and indexing every page they find.

List all popular search engines are:

1) Google Search Engine:  It is the best search engine in the world and it is also one of the most popular products from Google. Almost 70 percent of the Search Engine market has been acquired by Google. 

2) Yahoo Search Engine: A recent report on netmarketshare.com tells us that Yahoo has a market share of 7.68 percent.

3) Baidu Search Engine: It is the most used search engine in China and was founded in Jan, 2000 by Chinese Entrepreneur, Eric Xu. 

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Q4. How are computers used in education?

Answer:

Computers have revolutionized the teaching profession in multiple ways. Teachers use computers to record grades, calculate averages, manage attendance and access data on student performance in online programs and assessments. Computers have also made it easier for teachers to vary their instructional delivery.

Computer in Education – The Benefits and Uses:

1) Convenience

2) Improved student performance

3) Online resources

4) Fast access to research and information

5) Increased efficiency

6) Easy communication

7) Visualization tools

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Q5. What do you understand by video conferencing? How is it useful during the pandemic COVID 19?

Answer: 

Video conferencing is a live, visual connection between two or more remote parties over the internet that simulates a face-to-face meeting. Video conferencing is important because it joins people who would not normally be able to form a face-to-face connection.

It's useful in pandemic COVID 19 because it is an effective way for people to have face-to-face conversations with their nearest and dearest even if they aren’t allowed to physically be with them. 

Through video calls, people have been able to maintain a degree of togetherness, and friends have been able to talk, play games, and connect with each other regularly. These social interactions have been so important recently with the lack of physical contact and have helped to keep spirits high during a truly difficult time for us all. 

Through video conferencing students is able to attend lectures and complete their studies.

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Q6. What is the main difference between RAM and ROM?

Answer: