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History of Computers: From 1000 BC to 1960 AD

History of Computers: From 1000 BC to 1960 AD. For information on computers from 1960 to the future, click here. 1000-500 BC- Abacus 1434 AD- self-striking water clock 1500- da Vinci”s mechanical calculator 1640- arithmetic machine 1740- 1st English typewriter patent

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History of Computers: From 1000 BC to 1960 AD

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  1. History of Computers: From 1000 BC to 1960 AD For information on computers from 1960 to the future, click here

  2. 1000-500 BC- Abacus 1434 AD- self-striking water clock 1500- da Vinci”s mechanical calculator 1640- arithmetic machine 1740- 1st English typewriter patent 1800- Jacquard’s punched cards 1857- 1st paper tape used to store data 1867- 1st commercial typewriter 1890- tabulating machine 1902- 1st teleprinter 1936- electric logic machine 1939- electronic digital computer 1939-1944- Harvard Mark I 1943-1946- general-purpose electric computer 1944-1952- 1st stored computer program 1945- 1st computer “bug” 1948-1951- 1st commercial computers 1952- integrated circuits discovered 1957- IBM 610 auto point computer Timeline

  3. 1000 to 500 BC • The Abacus • A flat stone covered with sand or dust onto which numeric symbols were drawn. Pebbles were placed onto the symbols. Over time, the abacus evolved into a wooden frame with thin sticks onto which clay beads were threaded. This was considered the first calculating mechanism.

  4. 1500 AD • da Vinci’s mechanical calculator • The first mechanical calculator has always been attributed to Blaise Pascal, but in 1967, some notebooks of da Vinci’s were found. It was then discovered that the first mechanical calculator was actually his invention.

  5. Early 1600’s • Napier’s Bones • John Napier invented Napier’s Bones, which is basically multiplication tables inscribed on strips of wood or bone.

  6. 1640 • Pascal’s Arithmetic Machine • The arithmetic machine was invented to help Pascal’s father add and subtract amounts of money. Multiplication and Division were preformed by doing a series of additions or subtractions. The machine could actually only add, because subtraction could only be done using complement techniques.

  7. 1800 • Jacquard’s punched cards • Jac developed a way to control the warp and weft threads on a silk loom by recording holes on a string of cards. Variations of this punched card have been used in computers for storage for years.

  8. 1857 • Morse Code and Paper Tape • Morse code was actually invented in 1837, based on dots and dashes, and was used to transmit code over a single wire. This wire was the telegraph. In 1857, Charles Wheatstone invented paper tape as a means of storage, preparation, and transmission of data. This paper tape formed the basis of computer tape, which was used in the same way, only for computers.

  9. 1939-1944 • Harvard Mark I • This was the first large scale automatic digital computer, which was designed by Konrad Zuse. The official name by IBM was the automatic sequence controlled calculator. This first computer was designed out of switches, relays, rotating shifts, and clutches. The machine weighed more than 5 tons, was 50 feet long, and 6 feet tall.

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