Lesson 1 history of computer (grade 1)

History of Computer

INTRODUCTIONThe word computer

comes from the word “compute”, which means to calculate or to count. The first computers were

people.

Fingers

This method can only be done with

numbers from 1-10.

PEBBLES

This method can only be

done for small numbers.

ABACUS

This is the oldest

calculating device.

Charles Babbage

He invented of the first mechanical computing machine.

He is the Father of Computer.

Blaise Pascal

He invented the first mechanical calculator called the Pascaline.

Ok class, did you understand?

Any question?