HISTORY AND APPLICATIONS OF COMPUTERS || INTRODUCTION When more than one thing is needed to work together before an action can take place‚ we say we have a system. The computer needs several things before it can be used to solve problems. Therefore‚ we say the computer is a system. We may have systems around us even in our body. How we eat or what happens to the food we eat is a system. This is called the Digestive System. We need mouth‚ tongue‚ teeth and stomach for us to make good
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Set 1 1. To separate sand and camphor in pure state from the given mixture of sand and camphor. 2. To separate sand and salt in pure and dry state from the given mixture of sand and salt. 3. To prepare common salt by treating acid with base. 4. To prepare crystal of copper sulphate from the given mixture of sand and copper sulphate. 5. To prepare barium sulphate by treating barium chloride with dilute sulphuric acid in pure state. 6. To separate sand and calcium carbonate
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1 Proving of Identities Answer the following: cos(θ − β) = tanθ + cotβ is an identity. cosθ sinβ 1. Show that 2. Prove that sin(x + y) + sin(x − y) = 2 sinx cosy. 3. Verify that sin(x − y) tanx − tany = sin(x + y) tanx + tany 4. Derive an identity for cos3θ in terms of cosθ. 5. Prove that sin2θ + sinθ = tanθ is an identity. cos2θ + cosθ + 1 2tanθ = sin2θ is an identity. 1 + tan2 θ 6. Verify theta 7. Prove that x 2 − tan2 = 1 is an identity. 1 + cosx 2 8. Show
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Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. obseRvations
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Computers and culture | Computers and their role in human life have changed drastically since the 1950s. If 60 years ago computers did not play an important role in society‚ these day computers play a significant role in our lives. Initially‚ computers were big and awkward machines that were used just for keeping information and calculations. Throughout the last 50 years computers have become much smaller and much more sophisticated. If first computers were so large that they
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technological advancements significantly improved and innovative construction techniques surfaced‚ surprise attacks became more common that often caused a reputable amount of destruction to occur. While initial battles were mostly land-based‚ the invention of the submarine provided a new source for stealth and power as opponents often found difficulty providing defense and counterattacks to the underwater vessel. Not only do submarines allow for commanding
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According to the book‚ “The Inventions of Leonardo da Vinci‚” “Leonardo was one of several Renaissance military designers who thought of using an armored vehicle‚ but the tank never became an important weapon until the World Wars” (Cooper 152). Cooper states that the armored car helped the United States during the Wars and is a very important vehicle. The armored car was a very important invention because it helped the United States of America. The armored car was built to protect and serve our
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existence in order to keep the society in control. Anthem’s technological primitiveness is due to the fear of the science and technology and its lack of progress is due to the loss of individuality. Inventions are not easily accepted into the society. In Anthem‚ there is a set process for allowing a new invention into society. It is a very long process that takes a long time. For example‚ the candle took fifty years to be approved and then‚ to re-fit the Plans. These Plans appear to be like the constitution
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The Internet: A Revolutionary Modern Invention Just 21 years ago‚ the world would have never imagined the profound impact the Internet would have on our daily lives – from sending and receiving electronic mail to regularly banking and shopping online. According to The History Channel website‚ unlike the inventions of the light bulb or the telephone‚ the Internet has no single “inventor.” Rather‚ it has evolved over time. The Internet actually began in the United States more than 50 years
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treat some kinds of diseases. On the otherhand‚ the application of science leads to the development of technology. Technology comes from the Greek word tekne‚ which means art‚ craft or skill. Technology is the art craft and skill of harnessing scientific knowledge. Technology has improved the quality of life in many ways. DNA Analysis is now used to solve crimes.Packaged livelihood technologies produce goods and provide work and income. Nuclear research has brought about technologies fro treating
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