HISTORY OF COMPUTER Abacus - The First man-made computing device. - It can perform addition and subtraction - invented in China Pascal’s calculating machine/Pascaline - The first mechanical calculator - Invented by Blaise Pascal - Can perform addition & subtraction Leibnitz calculator - First general-purpose calculating machine - Extended version of Pascal Calculating machine - Can perform multiplication and Division - Invented by Gottfried Leibnitz Automatic
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Are We Too Dependent on Computers? Elisa M. Mata Pinales English 1301-213 Mss. Bustamante April 20‚ 2012 Texas A&M International University Abstract A great number of specialists agree to the fact that while technology improves‚ people become more dependent on it‚ which is the case of the computer. Having a computer and the knowledge to use it has a lot of advantages but also disadvantages. The use of the computer makes many things easy; you can find whatever you want on it‚ and
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Main article: History of computer science Charles Babbage is credited with inventing the first mechanical computer. Ada Lovelace is credited with writing the first algorithm intended for processing on a computer. The earliest foundations of what would become computer science predate the invention of the modern digital computer. Machines for calculating fixed numerical tasks such as the abacus have existed since antiquity‚ aiding in computations such as multiplication and
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COMPUTER FUNDAMENTALS SECTION A PART ONE MULTIPLE CHOICES: 1. (b) Two types. 2. (b) 1 or more input signals to produce output. 3. (d) Both (a) and (c). 4. (b) Non-volatile. 5. (c) Direct-access storage device. 6. (c) Multiple object program files of any software. 7. (d) None of the above. 8. (b) way in which the network’s nodes are linked together. 9. (a) World wide web 10. (a) General purpose electronic equipment for homes. PART TWO 1. WRITE A SHORT NOTES ON “THE OSI MODEL”
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Computer Packages 11 Graphic Packages: It is important to recall that the early graphics software performed creditably on production of simple bar graphs and funny little people made of squares. However‚ the modern day graphics software and hardware is so advanced such that it is sometimes difficult to tell if computer or trick photograph produced a picture. Computer graphics as often seen in advertisement‚ Logos‚ and sports broadcast on televisions are products of computer graphic applications
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A product that I have had experience purchasing is a computer. I bought it for attending college‚ but I have used it for so many other purposes. Today‚ having a computer has almost become a necessity; people use them for school‚ shopping‚ research‚ and communication. Many things that you may be on the lookout for‚ you can only find on the internet. Today‚ many people own a computer already and have no need to purchase another one. New discoveries in technology could be a factor in the change of supply
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Running head: COMPUTER RECYCLING Computer Recycling June 29‚ 2009 Computer Recycling Over the years‚ tons of electronics equipment with hazardous materials have been thrown away with standard garbage. Over time‚ these materials leak out of the electronics causing damage to the environment. In order to try and reduce the threat‚ many local‚ state and federal governments are enacting legislation that requires proper disposal of old electronics. Most computer equipment becomes outdated anywhere
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HISTORY OF COMPUTER THE PRE-MECHANICAL AGE: 3000 B.C. – 1450 A.D. 1. Writing and Alphabets – Communication First development of signs corresponding to spoken sounds‚ instead of pictures‚ to express words. Around 2000 B.C.‚ Phoenicians created symbols that expressed single syllables and consonants (the first true alphabet) The Greeks later adopted the Phoenician alphabet and added vowels; the Romans gave the letters Latin names to create the alphabet we use today. 2. Paper
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As we all know‚ computers can be found everywhere these days. They have changed the way we think‚ live and study‚ etc. The fact that computers have made incredible changes to our society‚ makes them very special invention. Although they might be only as important as other inventions such as electricity‚ airplanes‚ etc‚ it is their ability to be programmed to perform an amazing variety of tasks distinguishes computers from all the other inventions. Computers are playing an effective role in different
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2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the modern world (c) explain the need for reliability in computer systems (d) explain the need for adherence to suitable professional standards in the development‚ use and maintenance of computer systems (e) explain the importance of ethical‚ environmental and legal considerations when creating computer systems. What is a computer system? At its very basic
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