Y6 - Chapter 1 - Know Your Computer

Y6 - Chapter 1 - Know Your Computer

By Leo P

You will learn about:

• Early Calculating Devices

• Evolution of Computer

• Classification of computers​

• functional components of a computer

• categorization of software​

Chapter 1 - Know Your Computer

Learning Objectives

Open Ended

SNAP RECAP QUESTIONS:

1. What are the features of a computer that makes it better than human being?

2. What do you mean by input-processing-output cycle?

3. How is data stored in computer? What you mean by primary and secondary memory?

4. What are computing devices?

INTRODUCTION

A computer is an electronic device that accepts data from the user, processes it and gives the desired output.

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It is machine capable of performing calculations with the help of a mechanical computing device.

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The evolution of computers started wayback in the late 1930s.​

Subject | Subject

Chapter 1 - Know Your Computer

The first calculating machine, was developed in China. It was used to count numbers and perform simple calculation such as addition and subtraction.

Abacus

Was developed by Sir John Napier. The device was used to perform calculations involving addition, subtraction, multiplication and division.

Napier's bone

One of the first mechanical calculators, was invented by Blaise Pascal in the year 1642. Though it could perform only addition and subtraction, yet it became very popular

Pascaline

Early Calculating Devices

Chapter 1 - Know Your Computer

Was designed by Charles Babbage in the year 1837. It was theh fisrt mechanical general purpose computer which followed typical IPO cycle used in modern day computers. The machine took input using reader as an input device.

Analytical Engine

Was designed by Charles Babbage in the year 1822. This device could perform Mathematical and Astronomical calculations. It was also capable of storing data temporarily and print the output by punching the result.

Difference Engine

​Generation	​Year	​Type
​First Generation Computer	​1940-1956	Vacuum Tube​
Second Generation Computer	​1956-1963	Transistor
​Third Generation Computer	​1964-1971	Integrated Circuit​
Fourth Generation Computer	​1971-2010	Microprocessor​
Fifth Generation Computer	​2010-onwards	Artificial Intelegence​

​Evolution of Computers

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