Class VI T1 U7 Science Computer -An Introduction Textbook solutions







7 Computer - An Introduction

Evaluation


I. Choose the correct answer.


1. Who is the father of computer?

a. Martin Luther King

b. Graham Bell

c. Charlie Chaplin

d. Charles Babbage

Ans: d. Charles Babbage


2. Which of the following is another form of computer?

a. Blackboard 

b. Mobile

c. Radio 

d. Book

Ans: b. Mobile


3. When was the first computer introduced?

a. 1980 

b. 1947

c. 1946 

d. 1985

Ans: c. 1946 


4. Who is the computer’s first programmer?

a. Lady Wellington

b. Augusta ado Lovelace

c. Mary Curie

d. Mary Comb

Ans: b. Augusta ado Lovelace


5. Pick out the odd one.

a. Calculator 

b. Abacus

c. Flash card 

d. Laptop

Ans: c. Flash card 


II. Fill in the blanks.

1. Data is _____________information.

Ans: unprocessed


2. World’s first general purpose computer is _____________

Ans: abacus


3. Information is _____________data.

Ans: processed


4. Fifth generation computer has _____________ intelligence

Ans: artificial


5. _____________is the device that uses Index number.

Ans: Analog computer


III. State True or False.

1. Computer is an electronic device.

Ans: True


2. Sir Isaac Newton invented computer.

Ans: False


3. Computer can do calculations fast.

Ans: True


IV. Match the following.


First generation computer

Vacuum tubes

Second generation computer

Transistor

Third generation computer

Integrated circuit

Fourth generation computer

Microprocessor

Fifth generation computer

Artificial intelligence


V. Answer briefly.

1. What is a computer?

Computer is an electronic device that processes the data and Information according to our needs.

We can save the data and convert it into information. Computers are used in many ways.


2. Who are the pioneers / forerunners of computer?

  • Charles Babbage, a professor in Mathematics designed an analogue computer.

  • Augusta Ada Lovelace is admired as the first programmer as she developed essential commands for the mathematical operations.


3. Write a short note on Data.

Data is the information that has to be processed. It cannot be used  directly by us. Generally, they are in the form of numbers, alphabet and images.


4. Name any four input devices.

Keyboard, Mouse, Joystick, Web Camera


5. Differentiate hardware and software.


Hardware

Software

The parts that are available in the computer that helps the software to work are hardware.

The commands or programs that are used in computers are called software.

Hardware is physical in nature

Software is logical in nature

Ex.Motherboard, graphic card, mouse, keyboard etc.

Operating software and application software



VI. Answer in detail.

1. Explain in detail above the applications of computers. 


Computers play a vital role in everyone's life.

Because of computers accuracy and speed, it is being used in all walks of life.

  • Computers are used in school, colleges, research fields,rocket technology and satellite operation, control etc.

  • Computers are used in banks, ATMs etc.

  • Computers are used in bus,train,and flight services.

  • Computers are used in post offices, goods transportation etc.

  • Computers are used in various industries and sales counters.


 

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