. – 1899

2400The counting board much like the later Abacus is believed to be first used by the Babylonians circa.
300The abacus much like the device we know today begins being used.
100The Antikythera mechanism is probably the first mechanical analog computer. It was designed to calculate astronomical positions.
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0Should be: 14 billion 20.. after the BB.
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1440Johannes Gutenberg completes his development of the Gutenberg press, the first printing press.
1492Leonardo da Vinci makes drawing of 13-digit cog-wheeled adder.
  
1588First British manual bookkeping.
  
1600William Gilbert coins the term electricity from the Greek word elecktra.
1617John Napier introduced a system called ‘Napiers Bones’, made from horn, bone or ivory the device allowed the capability of multiplying by adding numbers and dividing by subtracting.
1622The circular slide rule is invented by William Oughtred.
1623The first known workable mechanical calculating machine is invented by Germanys Wilhelm Schickard.
1642Frances Blaise Pascal invents a machine, called the Pascaline, that can add and subtract.
1674Germanys Gottfried Wilhelm Leibnitz creates a machine that can add, subtract, multiply and divide automatically.
  
1725An early form of punch cards begin to be used in textile looms.
1774The first telegraph is built.
1780American Benjamin Franklin discovers electricity.
1791Charles Babbage is born.
  
1804Frances Joseph-Marie Jacquard completes his fully automated loom that is programmed by punched cards.
1820Thomas de Colmar creates the first reliable, useful and commercially successful calculating machine.
1821Charles Babbage invents the Difference Engine.
1826The earliest known surviving photograph is taken by Joseph Nicéphore Niépce – a view of a courtyard from his window.
1827George Simon Ohm introduces Ohm’s law in the book ‘Die galvanische Kette, mathematisch bearbeitet’.
1831Joseph Henry of Princeton invents the first working telegraph.
1832Semen Korsakov uses punch cards for the first time to store and search for information.
1838Samuel Morse invents a code – later called Morse code – to transmit messages.
1847Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on October 12.
 George Boole is the inventor of the prototype of what is now called Boolean logic, which became the basis of the modern digital computer. Boole is regarded in hindsight as a founder of the field of digital electronics.
1851Western Union was founded.
1857The phonautograph – phonograph – is patented March 25 by Édouard-Léon Scott de Martinville. The device was capable of transcribing sound to a medium.
1861The first known permanent color photograph is taken of a Tartan Ribbon by the photographer Thomas Sutton. To achieve a color image he took a photo of the ribbon three times, each time with a different color, a method developed by James Clerk Maxwell.
1866The first successful Trans-Atlantic cable is laid from Ireland to Newfoundland.
1868Christopher Sholes invents the typewriter in the United States utilizing the QWERTY keyboard.
1871Charles Babbage passes away October 18.
1875Tanaka Seizo-sho is established in Japan and later merges with another company called shibaura Seisaku-sho to form Tokyo Shibarura Denki. Later this companies name is shortened to Toshiba.
1876Alexander Graham Bell is often credited as inventing the telephone.
1877The microphone is invented in the by Emile Berliner.
 Thomas Edison invents and announces on November 21 the first phonograph capable of recording and replaying sounds.
1879James Jacob Ritty patents the worlds first cash register November 4.
1880ASME is founded.
1888Eastman Kodak is founded.
1883American Thomas Edison discovers the Edison effect, in which an electric current flows through a vacuum.
1885American Telegraph and Telephone company – AT&T – is incorporated.
1888Nikola Tesla patents the rotating field motor May 1 and later sells the rights to George Westinghouse. This invention helps create and transmit AC power and today is still a method for generating and distributing AC power.
 William S. Burroughs patents a printing adding machine.
 Friedrich Reintzer discovers liquid crystal.
1890Herman Hollerith developed a method for machines to to record and store information onto punch cards to be used for the US census. He later formed the company we know as IBM today.
1891Phillips is founded.
1897Karl Ferdinand Braun invents the Cathode-Ray Oscilloscope.
1898Alcatel is founded.