1614

John Napier develops algorithms.

1617

John Napier introduces Napier s Bones.

1642

The Pascaline is invented by Blaise Pascal.

1804

Jacquard s loom is invented by Joseph Marie Jacquard.

1822

The difference engine is invented by Charles Babbage.

1834

Analytical engine is invented by Charles Babbage.

1847

Boolean algebra is introduced by George Boole.

1853

A working difference engine is built by George Scheutz.

1890

The punch card tabulator is invented by Herman Hollerith.

1906

The vacuum tube is invented by Lee DeForest.

1917

Frequency division multiplexing (FDM) is invented by Bell Laboratories.

1928

Eighty-column punch cards are introduced by IBM.

1930

The differential analyzer is invented by Vannevar Bush of MIT.

1940

The complex number calculator is invented by George Stibitz of Bell Labs.

1942

The differential analyzer is modified.

1942

The first electronic digital computer is invented by John Atansoff and Clifford Berry.

1943

The Colossus computer is invented.

1944

Harvard Mark I is invented by Howard Aiken and IBM.

1946

The ENIAC is invented by John W. Mauchly and J. Presper Eckert.

1947

The transistor is invented by William Shockley, Walter Bratlain, and John Bardeen of Bell Labs.

1948

The selective sequence electronic calculator (SSEC) is invented by IBM.

1948

The term cybernetics is first coined by Norbert Weiner.

1949

Magnetic tape storage and the BINAC are invented by Eckert and Mauchly.

1949

The Manchester Mark I is invented.

1950

The ERA 101 is invented by Engineering Research Associates.

1951

Lyon s Electronic Office (LEO) is invented by...