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A Decade in History The Invention of The Computer. By: Kylene Cashman. 1936-Konrad Zuse z1 computer. The Konrad Zuse Z1 computer was the first binary computer. It was also the first freely programmable computer. It was a mechanical calculator.

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1936 konrad zuse z1 computer
1936-Konrad Zuse z1 computer.
  • The KonradZuse Z1 computer was the first binary computer.
  • It was also the first freely programmable computer.
  • It was a mechanical calculator.
  • It had all the basic ingredients of modern machines.
  • The Z1 used the binary system and today's standard separation of storage and control.
  • It was used to explore several It was used to explore several innovative technologies in calculator evolution, including:
                  • high-capacity memory
                  • modules regulating on the yes/no principle.
1942 abc computer
1942-ABC Computer.
  • The ABC computer was built at Iowa State University between 1939 and 1942.
  • It was the first electronic computer.
  • The Atanasoff computer was relatively the size of a bulky computer desk.
  • It was made of approximately 270 vacuum tubes.
  • The arithmetic unit was made up of 210 tubes, 30 tubes controlled the card reader, and the rest of the tubes helped maintain charges in the condensers.
  • Even though it was a revolutionary achievement, it had a wide variety of limitations.
  • It was very slow, and also required long hours of maintenance.
  • The computer was dismantled in 1948.
1944 harvard mark 1 computer
1944-HARVARD MARK 1 Computer.
  • It was invented and designed by Howard Aiken and Grace Hopper at Harvard University.
  • It was 55 feet long and 8 feet high.
  • The device was 5 tons, and contained approximately 760,000 pieces.
  • It was used for the US navy for ballistic and gunnery calculations.
  • The Harvard I could carry out certain functions such as addition, subtraction, multiplication, and division.
  • The data was stored and counted using 3000 decimal storage wheels, 1400 rotary dial switches, and 500 miles of wire.
  • All the outputs were displayed on a typewriter.
  • The Harvard Mark I computer was slow comparing to todays standards, taking 3-5 seconds for a multiplication operation.
1946 eniac 1 computer
1946-ENIAC 1 Computer.
  • The ENIAC 1 Computer was created by John Presper Eckert and John Mauchly.
  • It was used for computing artillery-firing tables, the setting for different weapons varied between target accuracy.
  • The ENIAC1 computer was composed of 17,468 vacuum tubes, along with 70,000 resistors, 10,000 capacitors, 1,500 relays, 6,000 manual switches and 5 million soldered joints.
  • It weighed 30 tons and covered 1,800 square feet of space. It also consumed 160 kilowatts of electricity.
  • There is even an urban myth that states that the ENIAC 1 computer would cause the city of Philadelphia to have rolling blackouts.
  • In one second, the ENIAC could perform 5,000 additions, 357 multiplications and 38 divisions. It was one thousand times faster than any other calculating machine to date.
  • The use of thousands of vacuum tubes instead of switches made the machine more intense in speed. But this also caused the machine to not be quick to program.
  • The machine required long hours of matinence to operate.
  • At 11:45 p.m., October 2, 1955, with the power finally shut off, and the ENIAC was retired.
konrad zuse and abc computer
KonradZuse and ABC Computer.


KonradZuse Z1 Computer.

http://www.computermuseum.li/Testpage/ABC-Computer-1940.htmABC Computer.

eniac 1 computer
ENIAC 1 Computer.


harvard mark 1 computer
Harvard Mark 1 Computer-