History Of Computer

• When human being race started for the development of business then it needs one calculating device.
• Above 2000 years ago first calculating device was discovered called ‘abacus’ it is still in use by some country like China & Japan
• In 1642 Blaise Pascal develope first mathematical adding machine
• After 30 years in 1671 German mathematician develop first calculator which can perform add, subtraction and db any arithmetic calculation.
• In 1883 Charles Babbage, Cambridge University, England discover first digital computer