Cordova Computer Book Class 6 Solutions

 

Cordova Computer Book Class 6 Solutions

Chapter 1: Introduction to Computers

Question 1: What are the main components of a computer?

Solution:

A computer system has four main components:

1. Input Devices:

   • Devices used to input data into the computer.
   • Examples: Keyboard, Mouse, Scanner.

2. Output Devices:

   • Devices that display or output data from the computer.
   • Examples: Monitor, Printer, Speakers.

3. Central Processing Unit (CPU):

   • The brain of the computer where processing occurs.
   • Components: Control Unit (CU), Arithmetic Logic Unit (ALU).

4. Storage Devices:

   • Devices used to store data permanently or temporarily.
   • Examples: Hard Disk, SSD, USB Drive.

Chapter 2: Introduction to Programming

Question 2: Write a simple Scratch program to display "Hello World".

Solution:

Here is a step-by-step guide to create a "Hello World" program in Scratch:

1. Open Scratch:

   • Go to the Scratch website or open the Scratch application.

2. Create a New Project:

   • Click on "Create" to start a new project.

3. Add Blocks:

   • Drag the "when green flag clicked" block to the script area.
   • Drag the "say [Hello!] for [2] seconds" block and connect it below the green flag block.
   • Change the text in the "say" block to "Hello World".

4. Run the Program:

   • Click the green flag to see the cat sprite say "Hello World".

Chapter 3: Basics of the Internet

Question 3: What is the Internet?

Solution:

The Internet is a global network of computers that are connected to each other. It allows users to share information and communicate with each other.

1. How the Internet Works:

   • Computers communicate using protocols like TCP/IP.
   • Data is sent in small packets across the network.

2. Common Uses of the Internet:

   • Communication: Email, social media.
   • Information Sharing: Websites, blogs.
   • Entertainment: Videos, games.
   • Online Services: Banking, shopping.

Chapter 4: Microsoft Word Basics

Question 4: How do you create a new document in Microsoft Word?

Solution:

Follow these steps to create a new document in Microsoft Word:

1. Open Microsoft Word:

   • Click on the Word icon to open the application.

2. Create a New Document:

   • Click on "File" in the top menu.
   • Select "New" from the dropdown menu.
   • Choose "Blank document" to open a new blank page.

3. Start Typing:

   • Begin typing your content on the blank page.

4. Save the Document:

• Click on "File" and select "Save As".
• Choose a location to save the file, give it a name, and click "Save".

Chapter 1: Introduction to Computers

Question 2: What is the difference between hardware and software?

Solution:

Hardware:

• Physical components of a computer that you can touch and see.
• Examples: Keyboard, Mouse, Monitor, Hard Drive.

Software:

• Programs and instructions that tell the hardware what to do.
• Examples: Operating System (Windows, macOS), Applications (Microsoft Word, Scratch).

Chapter 2: Introduction to Programming

Question 2: Explain the basic components of a Scratch program.

Solution:

1. Sprites:

   • Characters or objects that perform actions in Scratch.
   • Default sprite is a cat, but you can add more.

2. Stage:

   • The area where sprites move and interact.
   • Background images can be added to the stage.

3. Scripts:

   • Blocks of code that control the actions of sprites.
   • Assembled in the scripting area.

4. Costumes:

   • Different appearances of a sprite.
   • Can be used to animate the sprite.

5. Sounds:

   • Audio clips that can be played by sprites.
   • Can be added to make the program more interactive.

Chapter 3: Basics of the Internet

Question 2: What is a web browser? Give two examples.

Solution:

A web browser is a software application used to access and view websites on the Internet.

Examples:

1. Google Chrome:

   • Developed by Google.
   • Known for its speed and simplicity.

2. Mozilla Firefox:

   • Developed by Mozilla Foundation.
   • Known for its privacy features and customization options.

Chapter 4: Microsoft Word Basics

Question 2: How do you insert an image into a Microsoft Word document?

Solution:

Follow these steps to insert an image into a Microsoft Word document:

1. Open Your Document:

   • Open the Word document where you want to insert the image.

2. Place the Cursor:

   • Click where you want the image to appear.

3. Insert Image:

   • Click on the "Insert" tab in the top menu.
   • Select "Pictures" from the ribbon.
   • Choose "This Device" to insert an image from your computer.
   • Browse to the location of the image, select it, and click "Insert".

4. Resize and Move:

   • Click on the image to select it.
   • Use the handles around the image to resize it.
   • Drag the image to move it to the desired location.

Chapter 5: Microsoft Excel Basics

Question 1: How do you create a simple spreadsheet in Microsoft Excel?

Solution:

Follow these steps to create a simple spreadsheet in Microsoft Excel:

1. Open Microsoft Excel:

   • Click on the Excel icon to open the application.

2. Create a New Workbook:

   • Click on "File" and select "New".
   • Choose "Blank Workbook".

3. Enter Data:

   • Click on a cell (e.g., A1) and start typing.
   • Press "Enter" to move to the next cell or use the arrow keys.

4. Format Data:

   • Select the cells you want to format.
   • Use the options in the "Home" tab to change font, color, borders, etc.

5. Save the Workbook:

   • Click on "File" and select "Save As".
   • Choose a location, enter a file name, and click "Save".

Chapter 6: Cyber Safety

Question 1: What are some ways to stay safe online?

Solution:

Here are some tips to stay safe online:

1. Use Strong Passwords:

   • Create passwords that are difficult to guess.
   • Use a combination of letters, numbers, and special characters.

2. Do Not Share Personal Information:

   • Avoid sharing personal details like your address, phone number, and passwords online.

3. Be Cautious with Emails:

   • Do not open emails from unknown senders.
   • Avoid clicking on suspicious links.

4. Update Software Regularly:

   • Keep your operating system and software up to date to protect against security vulnerabilities.

5. Use Antivirus Software:

   • Install and regularly update antivirus software to protect your computer from malware.

Chapter 7: Introduction to Multimedia

Question 1: What are the different types of multimedia elements?

Solution:

Multimedia elements include:

1. Text:

   • Written content, such as articles and captions.

2. Images:

   • Pictures and graphics that provide visual information.

3. Audio:

   • Sound elements, such as music and voice recordings.

4. Video:

   • Moving images that provide visual and auditory information.

5. Animations:

• Moving graphics that can illustrate concepts and tell stories.