Science (English Medium) Class 11 - CBSE Question Bank Solutions for Computer Science (Python)

Sourabh has to prepare a project on “Digital India Initiatives”. He decides to get information from the Internet. He downloads three web pages (webpage 1, webpage 2, webpage 3) containing information on Digital India Initiatives. Which of the following steps taken by Sourabh is an example of plagiarism or copyright infringement? Give justification in support of your answer.

1. He read a paragraph on “ Digital India Initiatives” from webpage 1 and rephrased it in his own words. He finally pasted the rephrased paragraph in his project.
2. He downloaded three images of “ Digital India Initiatives” from webpage 2. He made a collage for his project using these images.
3. He downloaded the “Digital India Initiative” icon from web page 3 and pasted it on the front page of his project report.

You got the below-shown SMS from your bank querying a recent transaction. Answer the following:

Will you SMS your pin number to the given contact number?

You got the below-shown SMS from your bank querying a recent transaction. Answer the following:

Will you call the bank helpline number to recheck the validity of the SMS received?

Write the difference between the following - 

Copyrights and Patents

Write the difference between the following -

Plagiarism and Copyright infringement

Write the difference between the following -

Free software and Free and open-source software

If you plan to use a short text from an article on the web, what steps must you take in order to credit the sources used?

When you search online for pictures, how will you find pictures that are available in the free public domain? How can those pictures be used in your project without copyright violations?

What is data privacy?

Websites that you visit collect what type of information about you?

In the computer science class, Sunil and Jagdish were assigned the following task by their teacher.

1. Sunil was asked to find information about “India, a Nuclear power”. He was asked to use the Google Chrome browser and prepare his report using Google Docs.
2. Jagdish was asked to find information about “Digital India”. He was asked to use the Mozilla Firefox browser and prepare his report using Libre Office Writer.

What is the difference between the technologies used by Sunil and Jagdish?

What is the need for RAM?

What is the need for secondary memory?

How does RAM differ from ROM?

Check the size of the RAM and HDD of a computer in your school. Make a table and write their size in Bytes, Kilobytes, Megabytes, and Gigabytes.

List all secondary storage devices available at your school or home.

Write an algorithm that performs the following:

Ask a user to enter a number. If the number is between 5 and 15, write the word GREEN. If the number is between 15 and 25, write the word BLUE. if the number is between 25 and 35, write the word ORANGE. If it is any other number, write that ALL COLOURS ARE BEAUTIFUL.

Write an algorithm that accepts four numbers as input and finds the largest and smallest of them.

Write an algorithm to display the total water bill charges of the month depending upon the number of units consumed by the customer as per the following criteria:

• for the first 100 units @ 5 per unit
• for next 150 units @ 10 per unit
• more than 250 units @ 20 per unit

Also, add meter charges of 75 per month to calculate the total water bill.

Following is an algorithm for going to school or college. Can you suggest improvements in this to include other options?

Reach_School_Algorithm

1. Wake up
2. Get ready
3. Take lunch box
4. Take the bus
5. Get off the bus
6. Reach school or college