Energy can not be created or destroyed‚ but it can be transformed: the first law of conservation of energy. Since the earliest days of humanity‚ man has always been trying to control energy. It was not till the last century when Humans finally learned to harness the high concentration of energy existent in fossil fuels. Energy sources from fossil fuels such as oil and gas are going to run out eventually‚ they are non renewable sources of energy. Even though humans achieved to apply the first law
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Lesson 5 Review: Networking Models‚ Traffic and Devices The purpose of this activity is to reinforce what you have learned so far about local area networks technologies. 1. Describe the three modes of communication available on a network. Simplex Data travels in only one direction‚ similar to a public address (PA) system. Half-duplex Data travels in two directions‚ but in only one direction at a time‚ similar to a walkie-talkie. Traditional shared Ethernet uses half-duplex transmissions.
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Traditionally‚ symptoms of pain‚ swelling and inflammation were relieved by crudely placing ice cubes on the spot that hurts. Today modern medicine has given us Advil to alleviate common swelling and pain. Advil is the name brand manufacturing of Ibuprofen‚ a non-steroidal anti-inflammatory drug and analgesic. Advil is in the class with other drugs that is listed as “an essential medicine “by the World Health Organization which means that it is needed for basic health‚ is safe and cost effective
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Computer architecture or digital computer organization is the conceptual design and fundamental operational structure of a computer system. It’s a blueprint and functional description of requirements and design implementations for the various parts of a computer‚ focusing largely on the way by which the central processing unit (CPU) performs internally and accesses addresses in memory. It may also be defined as the science and art of selecting and interconnecting hardware components to create computers
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Computers are commonly used items in many areas. It is an important thing to people‚ especially the people who run organizations‚ industry‚ etc. . . Almost anything you know is run or made by computers. Cars and jets were designed on computers‚ traffic signals are run by computers‚ most medical equipment use computers and space exploration was started with computers. Most of the jobs today require the use of computers. These ’mechanical brains ’ made a huge impact on our society. It would be hard
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1. Solve S = 4v2 for v s = 4v² √s = 2v (√s)/2 = v 2. Solve M = 2x + 3y for y. -2x m-2x=3y /3y (m-2x)/3=3 3. Solve t = p+3r/6 for r. /6 6t=p+3r -p 6t-p=3r /3 (6t-p)/3=r 4. Solve V = π r2h for h. /pir^2 H=v/πr^2 5. Solve P = 2(l + w) for l. What are the missing values in the table? P w l 14 2 5 22 8 3 6. Create your own unique literal equation and solve for one of the variables. Show your work. Then‚ using complete sentences‚ explain how you solved for
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Argumentative Writing Topic: We are becoming overwhelmingly dependent on computers. Is thisdependence on computers a good thing or should we be more suspicious of their benefits? Introduction Computers are‚ without a doubt‚ a useful tool that many of us use every day. Sincetheir invention‚ people far and wide have become increasingly dependent oncomputers. Computers have found their way into just about every aspect of our lives‚ and in most cases‚ they make things easier for us. They allow us
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EVOUTION OF COMPUTERS The evolution of electronic computers over a period of time can be traced effectively dividing this period into various generations. Each generation is characterized by a major technological development that fundamentally changed the way computers operated. These helped to develop smaller‚ cheaper‚ powerful‚ efficient and reliable devices. Today‚ life has become indispensable without a computer. You find computerization in almost every sphere and industry. Computer evolution
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dawn of the science age. To support this fact they say that the technological advancement has been made in this period. In today’s society‚ almost every household has at least one computer if not more. In fact‚ it is not strange to walk in to a house that has two or three computer. Computers are all the same in one way or another‚ although they do vary from sizes to capabilities. Laptop computer and Desktop Computer are two computers that are similar but different. A Laptop computer is considered
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Computer Technician “The first special-purpose electronic digital computer was constructed in 1939 by John V. Atanasoff‚ an American mathematician and physicist. In 1944‚ Howard Aiken‚ a Harvard University professor‚ built another digital computer‚ the Mark 1.” (The World Book) To become a Computer Technician one needs at least one or two years of technical training and have good math skills. Computer technicians manage everybody’s computer problems‚ from installing machines to networks in homes
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