History of Computers (dates)

1822

Charles Babbage— an English mathematician and is known to be the "fateher of modern computer" invented the Difference Machine. This machine was capable of computing mathematical tables and solves by polymoninal equations

500 BC

The Chinese invented the Abacus

1642

Blaise Pascual— a french mathematician invented the PASCALINE, the first mechanical calculating machine.

1944

Burrough invented the MARK 1 or ASCC (Automatic Sequence Controlled Computer) machine that contains more than 15,000 vacuum tubes, some of which are 3 feet tall.

1963

Digital Equipmennt Cor. introduces the PDP-8, regarded as the first succesful minicomputer.

1950

Eckert Jr. and Mauchky again developed a machine. The UNIVAC 1 (Universal Automatic Computer) which could perfore 10,000 computations per second

1694

Gottfriend Wilhelm Von Leibriz— a german mathematician discoverd the Leibriz machine, considered of a stepped cylinder that could perform the four fundamental operations and sqare root.

1887

Herman Hollerith— An american statician and founder of tabulating machine company (now called International Business or IBM) invented the Cencus Machine.

1981

IBM introduced its hat into the Personal Computer ring with the announcement of the IBM pc. It sold 35,000 on its first year of release.

1617

John Napier, a scottish mathematician, invented the Napier's Bore

1945

John Presper Eckert Jr. and William Mauchly from University of Pennyslvabia invented the ENIAC (Electronical Integrator and Computer) that had the capacity of 5,000 computations per second.

1801

Joseph Marir Jaoquared— a french reaver and designer, devised the Jacquared Loom which used hole-punch cards. This machine woved variety of patterns.

1948

The IBM developed a more different desigb that ENIAC— The SSC (Selective Sequence Electronic Calculator).

1630

William Oughtred— an English Mathematician invented the slide rule, a device made of wood with moreable scale to arrange to slide opposite each

1892

William Seward Burrough— An american inventor, designed a key— driven machine that produce a hard copy. This was called Adding/ Calculating Machine.

1977

two young computer enthusiasts, Steven Jobs and Steve Wozniak, collaborated to create and build their Apple II computer in a makeshift production line in Job's garbage.