Page 9 - TP_iPlus_V2.1_Class5
P. 9
Evolution of
Computers 1
Learning Outcomes
History of Computers Computer Generations
Characteristics of a Computer Limitations of a Computer
Dear Students! You have learnt about computers in your previous class.
It is a familiar word to you today. But have you ever wondered, ‘Who invented the computer?’
This machine is an outcome of the labour of several minds. No single person can be credited
with the invention of computers, but several names stand out in the crowd.
i + HISTORY OF COMPUTERS
So far, you have learnt about the various uses of the computer. You have also learnt that
the computer is a powerful device that can be used to accomplish a variety of tasks. In
the past, a lot of research was done to develop a powerful machine. In this chapter, you
will learn about the scientists who were responsible for creating a perfect device that you
use in your everyday life.
Early Counting Tools
Since ancient times, people have invented tools for calculations. Early men tied knots in a
rope and carved marks on clay to keep the records. They also used to count with the help
of fingers, toes, pebbles, stones, sticks, bones, etc.
Early Counting Tools
7
Evolution of Computers

