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:
Input Devices:
- Devices used to input data into the computer.
- Examples: Keyboard, Mouse, Scanner.
Output Devices:
- Devices that display or output data from the computer.
- Examples: Monitor, Printer, Speakers.
Central Processing Unit (CPU):
- The brain of the computer where processing occurs.
- Components: Control Unit (CU), Arithmetic Logic Unit (ALU).
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:
Open Scratch:
- Go to the Scratch website or open the Scratch application.
Create a New Project:
- Click on "Create" to start a new project.
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".
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.
How the Internet Works:
- Computers communicate using protocols like TCP/IP.
- Data is sent in small packets across the network.
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:
Open Microsoft Word:
- Click on the Word icon to open the application.
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.
Start Typing:
- Begin typing your content on the blank page.
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:
Sprites:
- Characters or objects that perform actions in Scratch.
- Default sprite is a cat, but you can add more.
Stage:
- The area where sprites move and interact.
- Background images can be added to the stage.
Scripts:
- Blocks of code that control the actions of sprites.
- Assembled in the scripting area.
Costumes:
- Different appearances of a sprite.
- Can be used to animate the sprite.
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:
Google Chrome:
- Developed by Google.
- Known for its speed and simplicity.
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:
Open Your Document:
- Open the Word document where you want to insert the image.
Place the Cursor:
- Click where you want the image to appear.
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".
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:
Open Microsoft Excel:
- Click on the Excel icon to open the application.
Create a New Workbook:
- Click on "File" and select "New".
- Choose "Blank Workbook".
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.
Format Data:
- Select the cells you want to format.
- Use the options in the "Home" tab to change font, color, borders, etc.
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:
Use Strong Passwords:
- Create passwords that are difficult to guess.
- Use a combination of letters, numbers, and special characters.
Do Not Share Personal Information:
- Avoid sharing personal details like your address, phone number, and passwords online.
Be Cautious with Emails:
- Do not open emails from unknown senders.
- Avoid clicking on suspicious links.
Update Software Regularly:
- Keep your operating system and software up to date to protect against security vulnerabilities.
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:
Text:
- Written content, such as articles and captions.
Images:
- Pictures and graphics that provide visual information.
Audio:
- Sound elements, such as music and voice recordings.
Video:
- Moving images that provide visual and auditory information.
Animations:
- Moving graphics that can illustrate concepts and tell stories.