Computer System NCERT Class 11 CS Solution

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Q1. Name the software required to make a computer functional. Write down its two primary functions.



Q2. How does the computer understand a program written in high level language?



Q3. Why is the execution time of the machine code less than that of source code?



Q4. What is the need of RAM? How does it differ from ROM?



Q5. What is the need for secondary memory?



Q6. How do different components of the computer communicate with each other?



Q7. Draw the block diagram of a computer system. Briefly write about the functionality of each component.



Q8. What is the primary role of system bus? Why data bus is bidirectional while address bus is unidirectional?



Q9. Differentiate   between   proprietary   software   and   freeware software. Name two software for each type.



Q10. Write the main difference between microcontroller and microprocessor. Why do smart home appliances have a microcontroller instead of microprocessor embedded in them?



Q11. Mention the different types of data that you deal with while browsing the Internet.



Q12. Categories the following data as structured, semi-structured and unstructured:
• Newspaper
• Cricket Match Score
• HTML Page
• Patient records in a hospital



Q13. Name the input/output device used to do the following:
(a) To output audio
(b) To enter textual data
(c) To make hard copy of a text file
(d) To display the data/information
(e) To enter audio-based command
(f) To build 3D models
(g) To assist a visually impaired individual in entering data



Q14. Identify the category (system, application, programming tool) of the following software:

(a) Compiler
(b) Assembler
(c) Ubuntu
(d) Text editor