Counting with pebbles in the Stone-age. The first known calculator, Abacus, was invented in Babylonia in 2400 BC.

Counting with pebbles in the Stone-age

The first known calculator, Abacus, was invented in Babylonia in 2400

BC

John Napier invented Napier's Rods in 1614

William Oughtred invented the Sliderule in 1622

Blaise Pascal invented Pascaline in 1642

Joseph-Marie Jacquard invented Punched Cards in 1801. 

Charles Babbage designed his first Analytical Computer in

1822. 

Herman Hollerith invented a Counting Machine in 1890. 

ENIAC, the first general purpose electronic computer was invented in

1946

IBM System/360, the first computer was invented in1964

Interface Message Processor,

was invented in 1969

Cray-1, the first super computer was invented in 1976

Apple I, was designed by Steve as a build-it-yourself kit

computer in 1976

IBM Personal Computer, was invented in 1981

IBM Personal Computers

In 1991 Tim Berners came up with the World Wide

Web(Internet)

The first laptop computer the Power Book 100 was

introduced.

Nokia introduced a phone that had internet capabilities. This started a

revolution of devices that were small portable computers.

Artificial Intelligence

iPhone and iPad, 2007-2010