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100
The Abacus
The Abacus was invented for counting in 3000bc. Even though it was invented that long ago, some countries still ues it today. It can solve addition, subtraction, multiplication, and division problems. On it, it has Earth beads and Heaven beads. The Earth beads are worth one and the Heaven beads are worth five.
image found: http://commons.wikimedia.org/wiki/File:Abacus_5.jpg
9/6/13
information found:Abacus." World of Mathematics. Gale, 2007. Gale Biography In Context. Web. 8 Sept. 2013.
Docum -
Period: 100 to
Computer History
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The Pascaline
Blaise Pascal, a mathamatician, invented this calculator or machine that had unreliable mechanical parts. It could add and subtract nine digit numbers. image found:
http://commons.wikimedia.org/wiki/File:Blaise_pascal.jpg
information found:"Blaise Pascal's calculating machine La Pascaline." World of Invention. Gale, 2010. Gale Biography In Context. Web. 8 Sept. 2013.
Document URL
http://go.galegroup.com/ps/i.do?id=GALE|CV2210049299&v=2.1&u=jeff53810&it=r&p=GPS&sw=w Gale Document Num
9/6/13 -
The Stepped Reckoner
This calculator had unreliable mechanical parts just like the Pascaline, but it was invented by Giottfried Wilhem Leibnitz. This machine could add, subtract, multiply, and divide.
image found:http://en.m.wikipedia.org/wiki/File:Leibniz_Stepped_Reckoner.png
9/7/13
information found: History of Computers Powerpoint -
Charles Babage
He was known as the "Father of Computers" and did his work in the early 1800's. His invention, the Diffrence Engine, was never built but, another invenvention of his, the Analytical Engine was. He also invented many other things like the Cowcatcher and the Railroad Gauge.
image found: http://commons.wikimedia.org/wiki/File:Charles_Babbage_-_1860.jpg
9/7/13
information found: History of Computers Powerpoint. -
Jacquards Loom
Joseph Marie Jacquard, a weaver and inventor, came up with the idea of punched cards and used them to tell his loom what to weave. It was the first automatic loom. There was eventually 24,000 different programs of cards that the loom used. The cards told the loom what to weave beacuse the cards had holes in them and a rod went through the holes. image found: http://en.wikipedia.org/wiki/Computer
9/7/13
information found:Jacquard loom." World of Computer Science. Gale, 2007. Gale Biography I -
Lady Augusta Ada Countess of Lovelace
Lady Augusta,born in 1815, proved the limits of computers. Also, she is the first computer programmer . She is the daughter of a famous romantic poet, Lord Byron. The program that she wrote was for a computer that was never invented.
image found: http://commons.wikimedia.org/wiki/File:Ada_lovelace.jpg
9/7/13
information found:"Ada Byron King, Countess of Lovelace." Computer Sciences. Ed. Roger R. Flynn. New York: Macmillan Reference USA, 2002. Gale Biography In Context. Web. 8 Sept. 2013. -
Herman Hollerith's Tabulating machine
The tabulating machine was used for the US census, to count the people faster. It used electronic parts and replaced the unreliable mechanical parts. image found: https://commons.wikimedia.org/wiki/File:Hollerith.jpg
9/7/13
information found: History of Computers Powerpoint -
Alan Turnig
Alan Turnig wrote a paper that proved that any machine could solve any problem if it could process a stream of ones and zeros. image found: http://commons.wikimedia.org/wiki/File:Alan_Turing_Aged_16.jpg
9/7/13
information found: History of Computers Powerpoint -
The Atanasoff-Berry Computer
This computer was important beacuse it was the first electronic digital computer made. It wasa invented by John Vinsent Atanasoff and Clifford Berry. image found: http://commons.wikimedia.org/wiki/File:Atanasoff-Berry_Computer.jpg
9/6/13
information found:"Atanasoff-Berry computer." World of Computer Science. Gale, 2007. Gale Biography In Context. Web. 8 Sept. 2013.
Document URL
http://go.galegroup.com/ps/i.do?id=GALE|CV2424500050&v=2.1&u=jeff53810&it=r&p=GPS&sw=w Gale Document Number -
John Von Newmann
John Von Newmann was a great mathamatician. He came up with the idea of using memory in computers. He was also a consultant during World War II for the ENIAC. image found: http://commons.wikimedia.org/wiki/File:JohnvonNeumann-LosAlamos.gif
9/7/13
information found: "Von Neumann architecture." World of Computer Science. Gale, 2007. Gale Biography In Context. Web. 8 Sept. 2013.
Document URL
http://go.galegroup.com/ps/i.do?id=GALE|CV2424500622&v=2.1&u=jeff53810&it=r&p=GPS&sw=w -
Dr. Grace Murray Hopper
She was a great computer programmer and was one of them Mark One. She came up with the term "computer bug", which means a flaw in a computer. She came up with this term because a moth flew into one of her computers.
image found: https://als.m.wikipedia.org/wiki/Datei:Grace_Hopper.jpg
9/7/13
information found: History of Computers Powerpoint -
ENIAC
ENIAC was the second computer next to the ABC. It had about 18000 vacuum tubes and was used during World War II to help with math. It was invented by J. Presper Eckert and John Mauchly.
image found: http://commons.wikimedia.org/wiki/File:Eniac.jpg
9/7/13
information found: History of Computers Powerpoint -
Vacuum Tubes / First Generation Computers
Vacuum tubes were used in many early computers. They were also used in radioes. They weren't reliable because they would get very hot, were fragile, and they had to be changed out often.
image found: https://commons.wikimedia.org/wiki/File:Elektronenroehren-auswahl.jpg
9/7/13
information found:"Vacuum tube." UXL Encyclopedia of Science. U*X*L, 2007. Science In Context. Web. 8 Sept. 2013.
Document URL
http://go.galegroup.com/ps/i.do?id=GALE|CV2644300993&v=2.1&u=jeff53810&it=r&p=GPS&sw=w -
Second Generation Computers /Transistor
These computers were used from 1956-1964. They used transistors and an example of one is an IBM model 650. Compared to first generation computers, they were much smaller, faster , cheeper, and could process more information. image found: http://en.wikipedia.org/wiki/History_of_IBM
Information found: History of Computers Powerpoint
9/7/13
information found: History of Computers Powerpoint -
Third Generation Computers /Integrated Circuit
These computers were used from 1965-1970. They used integrated circuts and an example of one is a IBM system 360. Compared to second generation computers, they were smaller, faster, more reliable, and cheeper. image found: http://commons.wikimedia.org/wiki/File:IBM_system_360.JPG
9/7/13
Information found: History of Computers Powerpoint -
Fourth Generation Computers/ Microprocessors
These computers use microprocessors and integrated circuts. They were invented in the 1970's and are still around today. An example of one is your laptop. Now computers are cheeper, faster, smaller and more reliable than ever before. image found: https://en.m.wikipedia.org/wiki/File:MacBook_white.png
Information found: History of Computers Powerpoint
9/7/13
information found: History of Computers Powerpoint -
The Colossus
The Colossus was used during World War II to crack German codes. Alan Turning helped a lot with this project. image found: http://commons.wikimedia.org/wiki/File:Colossus.jpg
9/7/13
information found: History of Computers Powerpoint -
Harvard's Mark I
This wasn't a computer, it was an automatic sequence machine. In other words it was a controlled calculator. It was called the ASCC. image found: http://commons.wikimedia.org/wiki/File:Harvard_Mark_I_Computer_-_Left_Segment.jpg
9/8/13
information found: History of Computers Powerpoint
9/7/13
