In 1614, a Scottish mathematician named John Napier invented a set of rods, which have become known as "Napier's Bones," that could be used to perform complex calculations.
During the 17th century, Frenchman Blaise Pascal built a machine that could add numbers up to 8 digits (99,999,999).
In 1801, Joseph-Marie Jaquard developed a weaving loom that used punch cards to replicate designs--a revoluntionary step towards computer input.
The first machine that actually approximated the idea of a computer, that is, input-execution-output, was conceived in 1832 by Charles Babbage--called the "Difference Engine."
In 1890, a punch card calculator was created by Herman Hollerith to count the U.S. Census. Because of this, the U.S. Censes was completed in just 6 weeks!
William S. Burroughs
By 1900, several machines had been built rich rivaled the Analytical Engine in complexity. One of theses was invented by William S. Burroughs, and the Burroughs company went on to become one of the leaders in the computer industry.
Lee De Forest
In 1906, Lee De Forest invented the electronic tube. This vacuum tube made possible the development of electronic computers.
Need for Faster Calculations
In 1939, electronic machines where developed for the purpose of breaking German encryption codes. These machines were the forerunners of modern computers.
Howard H. Aiken
In 1943, a computer developed at Harvard University by Howard H. Aiken was the first programmed controlled calculator.
Invention of Colossus
In 1943, a computer named Colossus was completed in Great Britain. This computer took over the task of code breaking.
invention of the ENIAC
Electronic Numerical Intergrator and Computer. Capable of 100,000 calculations per second.
Invention of the Transistor
Each transistor could do the work of several electronic tubes, and each was smaller than a postage stamp.
invention of EDVAC
Electronic Discrete Variable Computer. First computer to use magnetic tape for storage.
invention of the floppy disk
Tokoyo, Dr. Yoshiro Nakamats
invention of UNIVAC I
The first computer produced in numbers for business.
invention of Magnetic Tape
used in UNIVAC 1
invention of Magnetic Core Memory
invention of dot matrix printer
invention of the Integrated Circuit
Invention of the integrated circuit led to the introduction of the modern computer "chip" which contains the power of millions of transistors.
invention of the mouse
Invention of RS-232 Serial Interface
invetion of the RAM Chip
invented by Intel
invention of the micropressor
invented by Marcian E. Hoff
By 1975, computers had really become of age, and they were beginning to show up in businesses everywhere.