Timeline
History Of Computer

The abacus was invented in Babylonia in 2400 B.C. It used to perform basic arithmetic operations

Inventor : John Napier

Allowed the operator to multiply, divide and calculate square and cube roots by moving the rods around and placing them in specially constructed boards

Inventor : William Oughtred

Used primarily for multiplication, division, roots, logarithms, Trigonometry

Inventor : Blaise Pascal

Pascaline is a desktop mechanical adding machine

Inventor : Gottfried Wilhelm Leibniz

The machine that can add, subtract, multiply and divide automatically

Inventor : Thomas de Colmar

It is the first digital mechanical calculator.

Inventor : Charles Babbage

Designed to store one thousand 50 digit number for calculations and decisions.

Inventor : Per Georg Scheutz

The first printing calculator.

Inventor : Joseph-Marie Jacquard

A card punch with holes in certain places that a computer can read data codes from combination of holes.

Inventor : Herman Hollerith

To assist in summarizing information and accounting.

Inventor : Howard H. Aiken

The first electro-mechanical computer.

Creator : Konerad Zus

The first programmable computer.

Inventor : Professor John Atanasoff and Clifford Berry

It was the first electronic digital computing device.

Developer : John Presper Eckert and John W. Mauch

It was the first electronic general purpose computer.

Designer : J. Presper Eckert and John Mauchly

The first commercial Computer which got large amount of public attention

IBM's first personal computer. The computer uses the MS-DOS operating system made by Microsoft

Inventor : Steve Jobs and Steve Wozniack

It is one of the first successful home computers and the first computer commercially sold by Apple

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