1 / 9

History of Computers

History of Computers. Created by Mrs. Gile Based on information taken from Computers Made Friendly. 1642. 19 year old Frenchman named Blaise Pascal invents a machine that can add and subtract. He called the machinge the Pascaline. . 1673.

mercer
Download Presentation

History of Computers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. History of Computers Created by Mrs. Gile Based on information taken from Computers Made Friendly

  2. 1642 19 year old Frenchman named Blaise Pascal invents a machine that can add and subtract. He called the machinge the Pascaline.

  3. 1673 • A German by the name of Gottfried Leibniz invents the Leibniz Calculator. This machine could add, subtract, multiply and divide.

  4. 1823 • An Englishman; Charles Babbage designed the Difference Engine and the Analytical Engine. Because of his contributions, Babbage is known as the Father of Computers.

  5. 1890 • Herman Hollerith became the first American to contribute to the invention of comptuers. He invented the Tabulating Machine. He began a company called International Business Machines.

  6. 1940 • Vacuum Tubes controlled the flow of electricity in a computer. They got very hot and would burn out. When this happened, the computer stopped working.

  7. 1950 • Transistors replaced vacuum tubes. Transistors were much smaller, and were more reliable than vacuum tubes.

  8. 1960 • The first integrated circuit was designed. It combines all the electronic parts a computer needs to run in one small place – a chip. It is about the size of your fingernail.

  9. 1974 • A microprocessor contains not only electronic circuits but also memory storage for a computer. Today microprocessors are small enough to fit into machines that fit in the palm of your hand.

More Related