ASTRAGEN GRADE 7 NOTES

 

1. What is the role of computers in the modern world?

Answer:
Computers play a very important role in the modern world. They help us in almost every field such as education, healthcare, banking, communication, entertainment, and business. Computers make our work faster, easier, and more accurate. They are used to store information, solve problems, and control machines.

2. What are the applications of a computer?

Answer:
The main applications of a computer are:

  • Education: Used for teaching, learning, and online classes.

  • Healthcare: Used in hospitals for keeping records and diagnosing diseases.

  • Banking: Used for managing accounts, online transactions, and ATMs.

  • Business: Used for billing, data storage, and communication.

  • Entertainment: Used for playing games, watching movies, and listening to music.

  • Communication: Used for emails, chats, and video calls.

  • Science and Research: Used for experiments, data analysis, and simulations.

3. Explain the role of computers in day-to-day communication.

Answer:
Computers help us communicate quickly and easily. We use computers for:

  • Emailing: Sending and receiving messages within seconds.

  • Chatting and Social Media: Staying connected with family and friends through apps like WhatsApp, Facebook, etc.

  • Video Calling: Using apps like Zoom, Google Meet for face-to-face communication.

  • Sharing Files and Documents: Sending pictures, videos, and documents instantly.

This makes communication faster, cheaper, and more effective.

4. Explain how computers are used in marketing.

Answer:
Computers are very useful in marketing. They are used to:

  • Create Advertisements: Using software to design posters, videos, and social media ads.

  • Digital Marketing: Reaching customers online through emails, websites, and social media.

  • Data Analysis: Studying customer behavior and buying patterns.

  • Online Sales: Selling products through websites and apps like Amazon or Flipkart.

Computers help marketers reach more people and increase sales easily.

5. Explain how computers are used in business.

Answer:
In business, computers are used for many tasks:

  • Billing and Invoicing: Creating and printing bills quickly.

  • Data Storage: Keeping records of employees, customers, and products.

  • Communication: Sending emails and reports to workers and clients.

  • Accounting: Managing money and financial reports.

  • Online Meetings: Conducting meetings using Zoom or Teams.

  • E-commerce: Running online shops and services.

Computers help businesses save time, reduce mistakes, and work efficiently.

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