Computer keyboard In computing‚ a keyboard is a typewriter-style device‚ which uses an arrangement of buttons or keys‚ to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape‚ interaction via teleprinter-style keyboards became the main input device for computers. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However‚ to produce some symbols requires pressing
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January. Seasonal unemployment is a form of structural unemployment‚ as the structure of the economy changes from month to month. Structural unemployment: when the structure of industry changes. * As PCs replaced typewriters‚ typewriter factories shut down. Workers in typewriter factories became unemployed and had to find other industries to be employed in. 2) A country called “Macro-Mania” has 450‚000 adult population of which 120‚000 is unemployed. 30‚000 are housewives‚ 350 are institutionalized
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touching the virtual keyboard on the screen of the computer or device itself. The Keyboard has a long history of development‚ starting with its ancestor the typewriter‚ where it developed its format by “Christopher Latham Sholes”. 1874 Sholes invents the “QWERTY layout” as it’s called‚ to prevent a key jamming problem faced in typewriters. 1888 The QWERTY layout mainstreams‚ and it is recognized
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During the 1990s‚ technological advance reduced the cost of computer chips. Explain‚ with the use supply and demand diagrams‚ how the following markets are affected in terms of prices and quantities. (a) Computers As technology advanced a reduction in production costs and more efficient production occurred allowing an increase of production and supply. More businesses seeing the potential opportunity entered the market which in turn increased the supply curve further both resulting in a shift
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allows us to demonstrate teaching strategies and also provide teachers with skills to succeed in the classroom. It changes the structure and the manor in which we learn. Such technologies used in education from the past‚ present and beyond are the typewriter‚ computer games‚ Internet‚ and communication. Technology and Education (the relationship) The relationship between technology and education can be characterized as a process of change and innovation. In the beginning societies depended on oral
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The once best-selling book the atonement by Ian McEwan is now a motion picture. This film stars A list actors‚ including Kiera Knightly and James McAvoy . The brilliant Director Joe Wright combined with screenwriter Christopher Hampton turns the bestseller into the award winning picture. Though adapted for the big screen‚ the film still contains important literary elements such as: theme‚ symbolism‚ conflicts‚ and setting. One major theme of the movie is thing aren’t always as they appear
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How has technology changed in the classroom over the years With the vast and rapid development of science and technology‚ a computer is no longer considered as a source of luxury but it’s a requirement of the modern days. Computer technology has provided students of all ages the chance and opportunity to expand on what interests they have. It also provides them help in improvement of their homework and test scores. The computers can offer newer ways of getting information across to their
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Industrialization after the Civil War led to great business improvements in the United States of America. After the Civil War the inventions of a variety of machines were underway. Before the Civil War and the industrialization era‚ businesses were small and they were unable to make their products in mass amounts. Each business had to make their inventory by hand‚ which took a great deal of time. Due to the creation of machinery‚ businesses in America took off. Owners based their businesses
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of the progression of the educational aspect of input devices that helped to inspire persons like Turner to envision the future of computing power and potential for growth. The typewriter is the precursor to the keyboard. In the 1980’s the word Heavy Duty was synonymous with durability and quality. The average typewriter back then weighed at least 15 pounds or more. They were enormous‚ required a ribbon‚ paper‚ and of course white out on the spot. The paper had to be aligned by hand and there
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