Computer: December 2011

EDVAC :- It was invented in 1947 A.D. by

John Von Neuman.

EDSAC :- It was invented in 1941 A.D. by

Prof. M.V. Wilkes.

UNIVAC – I :- It was invented in 1951 A.D. by Univac.

Mark - I :- It was invented in 1943 A.D. by Howard Aiken.

ABC :- It was invented in 1942 A.D. by Dr. John Atnasoff.

ENIAC :- It was invented in 1946 Dr. John W.. Mauchly &

J. Presper Eckert.

Abacus :- It was invented in 3000 B.C. It was used

for calculating.

Napier’s Bone :- It was invented in 1614 A.D. by

John Napier.

Pascaline :- It was invented in 1642 A.D. by

Blaise Pascal.

Stepped Recknor :- It was invented in 1671 A.D. by

Gott Fried Wilhelm von Leibniz.

Jackquard’s Loom :- It was invented in 1802 A.D. by

Joseph Marie Jackquard.

Difference Engine :- It was invented in 1822 A.D. by

Charles Babbage.

Analytical Engine :- It was invented in 1833 A.D. by

Charles Babbage.

Hollarith’s Tabulator :- It was invented in 1877 A.D. by

Hollarith’s Tabulator.

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