History of Computers
History of Computers History means the systematic information (study) about the past of anything under the topic history of computers followings are some important points. 1) Abacus Abacus means a calculating board. It is known as the first calculating machine invented by Tim Cranmer . It was first developed by China. It is still commonly used by the peoples who are blinds. It is also known as Cranmer's Abacus. 2) Pascal's Adding Machine In 1642 French scientist and philosopher Blaise Pascal .invented the first practical mechanical calculator. It was known as adding machine that could Add and Subtract. It is also called Pascaline. 3) Gott fried Leibniz In 1671 , German mathematician and philosopher Gottfried Wilhelm Leibniz develops an advance version of pascal's adding machine. It could Add, Subtract as well as Multip...