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9th Science - Computer – An Introduction Model Question Paper

Published on: 07/12/2019

Computer – An Introduction

Download Tamil Nadu 9th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 9th Standard - Science

chapter: - Model Question paper

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Questions:

Generic 4

2 x 4 = 8

What is data processing?

Define computer.

Generic 7

2 x 7 = 14

List out the generations of computer

What are the different steps involved in data processing?

Multiple Choice Question

4 x 1 = 4

1. Abacus belongs to the first generation of the computer
2. ENIAC was used in the American military

(a)

Both the statements are correct

(b)

Statement 1 is wrong but 2 is correct

(c)

Statement 1 is correct but 2 is wrong

(d)

Both the statements are wrong.

Data processing involves________ steps

(a)

seven

(b)

four

(c)

six

(d)

eight

_________ belongs to the generation IV of the computer

(a)

Microprocessor

(b)

Artificial intelligence

(c)

Transistor

(d)

Vaccum Tubes

____________ is an electronic device which stores data and information

(a)

Telescope

(b)

Television

(c)

Computer

(d)

Radio

Generic 2

5 x 2 = 10

How computer generations are categorised?

10.

What are the forms of computer?

11.

Who was the first programmer?

12.

Who is the father of modern computer?

13.

Write a note on ENIAC.

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Answers Key:

Generic 4

2 x 4 = 8

The data processing in a computer is collecting data and converting it into information according to our needs and requirements.

Computer is an electronic device, which manipulates and stores data and information through commands or program codes.

Generic 7

2 x 7 = 14

Generations of Computer:

Generation	Digital devices
1940-1956 - I Generation	Vacuum tubes
1956-1963 - II Generation	Transistor
1964-1971 - ill Generation	Integrated circuits
1972-2010 - IV Generation	Micro processors
After 2010 - V Generation	Artificial Intelligence

Data processing has six steps. They are:
Data collection
Data storage
Data sorting
The data processing
Data analysis
Data presentation and conclusions

Multiple Choice Question

4 x 1 = 4

(a)
Both the statements are correct

(a)
Microprocessor

Generic 2

5 x 2 = 10

The main difference between the generations is the speed and efficiency of the computer. On the basis of performance and speed, the generations of the computer was categorised.

10.

Desktop, laptop, palmtop, tablet etc.

11.

Lady Augusta Ada Lovelace was honored as the. first programmer as she gave the first programming to do arithmetic operations.

12.

Nineteenth century was considered as the birth of the computer when Charles Babbage designed the basic construction of a computer.

13.

ENIAC- A computer had approximately 18,000 vacuum tubes. The size occupied by the ENIAC could be equivalent to a class room. ENIAC, which was used by the American Military in 1946 to predict the traj ectory of artillery shells, recognized as the world's first general purpose computer.