History of computer/first computer device?

History of computer/first computer device?

history  of computer describes how a computer was developed the developed meant of computer was start when  people learned how to count and calculate. In the beginning they used stones,pebbles,sticks,fingers for counting...

they developed different number system like decimal number system, binary number system, etc...

to represent the counted values. they started to build counting devices in order to perform calculating fast and easily...

the history of computer start out about 3000 years ago at the birth of the Abacus.. many mathematicians and physicists and physicists had invented many other calculating machines in 1937 AD, Howard Aiken With IBM engineers had successfully developed the first automatic electronic computer MARK-I . The MARK-I was not looked like today's computer. the development of computer has computers during different periods are as follow....

ABACUS

History of computer/first computer device?


The ABACUS was the first calculating device invented in China..it was made up of wooden frame having tow parts (upper deck and lower deck ) separated by middle bar. It contained 1rode. each rode contains two movable beads in the upper deck (also called heaven) and five movable beads in the lower deck (also called earth) Each bead of upper deck  represents five and each bead of lower deck representation...

the abacus is base on the decimal number system. it works on the principle of place value notation : the location of the bead determines its value.

to represents 24 you need to move 2 bead of tens column toward the middle bar. it is used for addition subtraction,multiplication and division. The abacus is still used in countries like
Japan,chain, Nepal usmas Nepal is teaching children ages 5 to 13 to calculate fast accurately using ABACUS

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