Science and Technology Class 9 Important Questions Chapter 10 Maharashtra Board

Information Communication Technology

Short Questions

1. What does ICT stand for?

• ICT stands for Information Communication Technology.

2. What was the first generation computer?

• The first generation computer was the ENIAC, used between 1946 and 1959.

3. What were first generation computers made of?

• First generation computers were made using valves.

4. What is the main function of the input unit in a computer?

• The input unit enters data or information into the computer, usually via a keyboard.

5. What is the role of the output unit?

• The output unit displays or prints the results, like on a monitor or printer.

6. What is RAM in a computer?

• RAM (Random Access Memory) is the internal memory that stores data temporarily while the computer is on.

7. What is ROM in a computer?

• ROM (Read Only Memory) is the internal memory that stores data permanently and cannot be changed.

8. What is an operating system?

• An operating system is a program that helps communication between the computer and the user.

9. What is hardware in a computer?

• Hardware includes all the electronic and mechanical parts of a computer.

10. What is software in a computer?

• Software refers to the commands, input data, and output results processed by the computer.

11. Which software is used to create documents?

• Microsoft Word is used to create documents.

12. Which software is used to draw graphs?

• Microsoft Excel is used to draw graphs based on numerical data.

13. What is Microsoft PowerPoint used for?

• Microsoft PowerPoint is used to create presentations with slides and animations.

14. What is a PDF file used for?

• A PDF (Portable Document Format) file is used to view, print, or handle documents.

15. What is Internet Explorer?

• Internet Explorer is a search engine to find information on the internet.

16. How can ICT help in science?

• ICT helps in science by demonstrating experiments, predicting weather, and collecting data.

17. What is one job opportunity in the software field?

• Application program development is a job opportunity in the software field.

18. What does the hardware field include?

• The hardware field includes designing, assembling, and maintaining computers.

19. Which institute developed the first Indian supercomputer?

• C-DAC (Centre for Development of Advanced Computing) developed the first Indian supercomputer.

20. What is the Param computer used for?

• The Param computer is used for space research, meteorology, and medical studies.

Long Questions

1. What is the importance of ICT in dealing with the explosion of information?

• ICT helps manage the huge amount of information growing due to science and technology by storing and processing it quickly. It keeps our knowledge updated by allowing easy access to the latest data through devices like computers.

2. How does a computer work with its main components?

• A computer works by taking input data through the input unit (e.g., keyboard), processing it in the processing unit (memory, control, and ALU), and showing results via the output unit (e.g., monitor). The memory stores data, and the operating system helps the user control the process.

3. What are the differences between RAM and ROM?

• RAM (Random Access Memory) stores data temporarily and allows changes while the computer is on, but it loses data when powered off. ROM (Read Only Memory) holds permanent data that cannot be changed, ensuring essential instructions are always available.

4. How can Microsoft Word be used to create a document with equations?

• Open Microsoft Word, create a new blank document, and type your text using the keyboard with formatting options from the Home tab. Insert equations by selecting the “Equation” option in the Insert tab and using mathematical symbols.

5. What steps are involved in drawing a graph using Microsoft Excel?

• Open Microsoft Excel, enter data in a sheet, select the data, and choose a graph type from the Insert tab to create it. Analyze the graph to understand trends in the data, ensuring neat entry and correct formulas.

6. How can Microsoft PowerPoint be used to make an effective presentation?

• Start by opening PowerPoint, selecting a blank slide, and typing information with pictures from the Design and Insert tabs. Use the Animation tab to add effects, making the slideshow engaging and easy to follow.

7. What is the role of ICT in science and technology?

• ICT helps in science by using simulations to demonstrate experiments, like the nervous system, and predicting weather through data processing. It also collects scientific information via the internet, emails, and video conferencing.

8. What are the job opportunities in the field of computers?

• In the software field, jobs include developing applications and operating systems, while the hardware field offers roles in designing, assembling, and maintaining computers. Training, marketing, and sales of computer products also provide many job opportunities.

9. What are the differences between the first and fifth generation computers?

• First generation computers, like ENIAC (1946-1959), used large valves, consumed lots of electricity, and often shut down due to heat. Fifth generation computers are faster, smaller, and use advanced technology, making them reliable for modern use.

10. What precautions should be taken while using computer software?

• Enter data neatly in tables, avoid unnecessary spaces or special characters, and start formulas with “=” without spaces. Always follow instructions carefully and seek help from teachers or friends to avoid mistakes.