History of the Computer and Internet Designed by: Knasherill 6 th period.
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Transcript of History of the Computer and Internet Designed by: Knasherill 6 th period.
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History of the Computer and Internet
Designed by: Knasherill6th period
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History on the Computer
• The first computer was invented in 1936 . They called it the Z1 Computer . Konrad Zuse was the inventor .
• More information : the computer was made for freely programmable computer .
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“ debug ”
• Debuggingg is a methodical process of finding and reducing the number of bugs , or defects , in a computer program ; that is making it behave as expected .
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History on the Internet
• The development of now what is call the internet started in 1957 .
• The purpose was to enable university and the government engineers to research and work from any location on the network .
• Advanced Research Projects Agency (ARPA) make the internet !!
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Babbage’s Analytical Engine
• The analytical engine is important to the computers today .
• It was design for mechanical general purpose by an English mathematician Charles Babbage
• It was the first completed general-purpose computer for over 100 years !
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Herman Hollerith’s Machine
• Hollerith’s great breakthrough was his used of electricity to read, count, and sort punched cards whose holes represented data gathered by the census-takers .
• He got his idea from the punch-card tabulating machine from watching a train conductor punch tickets .
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ENIAC
• The military needed to develop firing tables for its artillery, so that gunners in the field could quickly look up which settings to use with a particular weapon on a particular target under particular conditions.
• It took about a year to design ENIAC, and 18 months to build it. By the time it was completed, in November 1945, the war had been over for three months in Philadelphia
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What is a program ?
• Programs are used to create documents and files for the user .
• Programs are what actually put your computer to good use.
• Example : Window 7 is a program
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Transistor replacing vacuum tubes
• The transistor was the first device designed to act as both a transmitter, converting sound waves into electronic waves, and resistor, controlling electronic current.
• By replacing bulky and unreliable vacuum tubes with transistors, computers could now perform the same functions, using less power and space.
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Who invented the first microcomputer ?
• Intel’s founder, Robert Noyce , chartered Ted Hoff’s Applications Research Department in 1969 to find new applications for silicon technology -the microcomputer was the result. . . But in 1970 they could only get about 2000 transistors on a chip and a conventional CPU would need about 10 times that number. They developed two “microcomputers” 10 years ahead of “schedule,” by scaling down the requirements and using a few other “tricks” described in their paper.
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Binary system
• Computers use a binary system for numbers to represent every thing that you type into your file. The memory is stored in binary numbers .
• The binary number for the capital letter A is 01000001
• Each letter, number, space or symbol you type is represented by a combination of eight 1's and 0's. This may seem like a waste of space, but the computer doesn't really care about space.
• the binary system is much easier for a computer to understand because of it's electronic nature and the fact that it's only dealing with 1's and 0's.
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Resource and Pictures• http://inventors.about.com/library/blcoindex.htm• http://en.wikipedia.org/wiki/Debugging• http://wiki.answers.com/Q/What_date_did_the_Internet_start
• http://en.wikipedia.org/wiki/Analytical_engine• http://inventors.about.com/library/inventors/blhollerith.htm
• http://www.pbs.org/wgbh/aso/databank/entries/dt45en.html
• http://www.learnthat.com/define/view.asp?id=56• http://inventors.about.com/library/weekly/aa061698.htm
• http://www.xnumber.com/xnumber/Microcomputer_invention.htm
• http://tandemtables.com/database/tables/basics/BYTES_EASY.html