Text Book Back Questions and Answers - Chapter 25 - Computer – An Introduction - 9th Science Guide Samacheer Kalvi Solutions - Tamil Medium

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Chapter 25 - Computer – An Introduction - 9th Science Guide Samacheer Kalvi Solutions

I. Choose the correct answer.
Question $1 .$

................is an electronic device which stores data and information.
(a) Telescope
(b) Television
(c) Computer
(d) Radio
Answer:
(c) Computer
 

Question 2.
.....................belongs to the generation IV of the computer.
(a) Microprocessor
(b) Artificial intelligence
(c) Transistor
(d) Vacuum Tubes
Answer:
(a) Microprocessor
 

Question $3 .$
Data processing involves .......................steps.
(a) seven
(b) four
(c) $\mathrm{six}$
(d) eight
Answer:
(c) $\operatorname{six}$

Question $4 .$
(i) Abacus belongs to the first generation of the computer.
(ii) ENIAC was used in the American military.
(a) Both the statements are correct
(b) Statement (i) is wrong but (ii) is correct
(c) Statement (i) is correct but (ii) is wrong
(d) Both the statements are wrong.
Answer:
(a) Both the statements are correct
 

II. Match the following.

1. III generation computer - (a) Integrated circuit
2. Text, number - (b) Information
3. Transistor - (c) Father of computer
4. Directly used - (d) Data
5. Charles Babbage - (e) II generation
Answer:
1. (a) Integrated circuit
2. (d) Data
3. (e) II generation
4. (b) Information
5. (c) Father of computer
 

III. Answer the following in brief.
Question $1 .$
Define computer.
Answer:
Computer is an electronic device, which manipulates and stores data and information through commands or program codes.
 

Question 2.
Differentiate data and information.

Question $3 .$
What is data processing?
Answer:
The data processing in a computer is collecting data and converting it into information according to our needs and requirements.
 

IV. Answer the following in detail:-
Question $1 .$
What are the different steps involved in data processing?
Answer:
Data processing has six steps. They are,
- Data collection
- Data storage
- Data sorting
- The data processing
- Data analysis
- Data presentation and conclusions

Question 2.

List out the generations of computer.

I. Fill in the blanks.
1. ................ is an electronic device which manipulates and stores data and information.
2. Lady Augusta Ada Lovelace was honored as the first programmer for programming...............
3. Computer operates by the exchange of............... between the hardware and software.
4. ............... designed the basic constructions of a computer.
5. The first and the basic method of computing is...............

Answer:
1. Computer
2. Arithmetic operations
3. Commands
4. Charles Babbage
5. Abacus