DAV Class 7 Computer Chapter 1 EVOLUTION OF COMPUTER complete solution, DAV Class VII Computer

 DAV Public School Class 7 Computer CHAPTER 1 EVOLUTION OF COMPUTER, DAV Class VII Computer 

A. Objective type question.

1) Which electronic components are used in First Generation computers? 

Ans. Vacuum tube

2) Which electronic components are used in Second Generation Computers? 

Ans. Transistors

3) ENIAC Computer belongs to…………..

Ans. First Generation Computer

4) Which type of calculating device invented by Blaise Pascal? 

Ans. Pascaline

5) Which type of language used in first generation computer? 

Ans. Machine Language

6) What was the name of first computer designed by Charles Babbage? 

Ans. Analytical Engine.

7) Which was the first electronics digital programmable computing device? 

Ans. UNIVAC and ENIAC

8) Who invented the Punch Card?

 Ans. Herman Hollerith

9) Write the name of world’s first calculating device and which country invent it?

Ans. Abacus & In china

10) What is the first programmable weaving device? Who was the    inventor of that device?

Ans. JACQUARD MACHINE was the first programmable device invented by  Joseph Marie in 1804

11) What is Cipher code?

Ans. A code in the form of Encrypted for security is called Cipher code.

12) What is Decryption?

Ans. The process of converting encrypted data back into its original form is       called Decryption.

13) Write the name of first computer network.

Ans. ARPANET (Advance Research Project Agency Network)

B) Fill in the blanks:-

1) A term in computer terminology is a change in technology a computer is  being used Generation.

 

2) . 1st Generation of computer stated with using Vacuum tubes as the basic components.

3) Batch processing was mainly used in 2nd generation.

4) AI (Artificial Intelligence) is an emerging branch in computer science , which interprets means and method of making computers think like human beings.

5) In 3rd Generation time sharing, Real time, Networks, Distributed operating system was used.

6) Voice Recognition is the feature of 5th Generation.

C) True or False:-

1) Natural language is the software characteristics of 2nd generation. False

2) Cluster Computing is the hardware characteristics of 5th generation. True

3) Larger Capacity Hard disk uses as Secondary Storage device. True

4) “SSI“ and “MSI” are electronic hardware components used in the form of IC’s. True

5) Java is Low Level Language of computer. False

D) Abbreviation:-

1) IC:- Integrated Circuits

2) UNIVAC :- Universal Automatic Computer

3) ENIAC :- Electronic Numerical Integrator and Computer

4) SSI :- Small Scale Intergration

5) MSI :- Medium Scale Integration

6) VLSI :- Very Large Scale Integration

7) ULSI :- Ultra Large Scale Integration

8) GUI :- Graphical User Interface

9) CUI :- Character User Inte