The History of Computers

Computers History:

The computers and machines we are using today are not developed at once.The computer has its various generations as,

(i)First Generation of Computer

(ii)Second Generation of Computer

(iii)Third Generation of Computer

(iv)Fourth Generation of Computer

(v)Fifth Generation of Computer.

 

First calculating device(Abacus):

One of  The simplest and the most earliest calculating device was abacus.Abacus was developed around 300BC. It  was  used to calculate numbers or for additions and subtractions of the numbers.A simple ABACUS is a simple rectangular wooden frame with several parallel wires  and a wire has a number of  beads .These beads are free to slide over the length of the wires vertically when doing additions,counting etc.Each wire of the ABACUS represent a digit.



                           

ABACUS

Abacus was used before the  numbers systems were adopted by merchants,traders,people and sometimes by everyone.Today it is  a part of our museums.But still it is widely used in various parts of world like Asia,Africa,etc.But it is not very common in the world.