NCERT Class 11 Informatics Practices Chapter 1 Answer | COMPUTER SYSTEM | English Medium |

Chapter 1

COMPUTER SYSTEM

Exercise

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

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

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3. What is the need for secondary memory?

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

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5. Differentiate between proprietary software and freeware software. Name two software of each type.

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6. Mention any browsers used for browsing the internet.

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7. 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

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

a) Compiler

b) Assembler

c) Ubuntu

d) Text editor

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9. Convert the following into bytes:

a) 2 MB

b) 3.7 GB

c) 1.2 TB

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10. What is the security threats involved when we throw away electronic gadgets that are non-functional?

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11. Write down the type of memory needed to do the following:

a) To store data permanently

b) To execute the program

c) To store the instructions which can not be overwritten.

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