INTRODUCTION: Closed-circuit television (CCTV) is a camera which is used to produce images or recordings for surveillance purposes. CCTV can be either video cameras‚ or digital stills cameras. Video cameras are either analogue or digital‚ which means that they work on the basis of sending analogue or digital signals to a storage device such as a video tape recorder or desktop computer or laptop computer wherelse digital stills cameras can take excellent pictures in most situations
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Advantages and Disadvantages of Wind-Generated Electricity A Renewable Non-Polluting Resource Wind energy is a free‚ renewable resource‚ so no matter how much is used today‚ there will still be the same supply in the future. Wind energy is also a source ofclean‚ non-polluting‚ electricity. Unlike conventional power plants‚ wind plants emit no air pollutants or greenhouse gases. According to the U.S. Department of Energy‚ in 1990‚ California’s wind power plants offset the emission of more than 2.5
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Syllabus Cambridge O Level Computer Studies Syllabus code 7010 For examination in June and November 2011 www.XtremePapers.net Note for Exams Officers: Before making Final Entries‚ please check availability of the codes for the components and options in the E3 booklet (titled “Procedures for the Submission of Entries”) relevant to the exam session. Please note that component and option codes are subject to change. www.XtremePapers.net Contents Cambridge O Level Computer Studies
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Nowadays many people all over the world spent most of their free time watching television; but since its appearance‚ television has brought to man many advantages as well as disadvantages. Television plays an important role in our daily activities: it keeps us informed about all the current affairs in the world. Television helps us in broadening Our knowledge in many ways. Through language teaching programs‚ we can learn the language we like such as: English‚ French‚ German‚ Chinese‚ Japanese
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structure a business may decide to adopt. This assignment will examine the four main different business structures and present the advantages and disadvantages of each one. The business structures that I will be examining are as follows: The Sole Trader The partnership The Private Limited Company (LTD) The Public Limited Company (PLC) Sole trader A sole trader is an organisation‚ which is owned by one person. The assets and liabilities of the owner and those of the business are the
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ADVANTAGES Plastic is very useful in the building and construction‚ electronics (laptops wouldn’t work well if they were made from glass)‚ packaging (gladwrap)‚ transportation industries. Very easy to make - water bottles‚ plastic bags‚ pens‚ cups etc etc The main advantages of plastic materials are also the reason why plastic is such a problem. It lasts forever and it is very cheap to make. When I say it last forever‚ I mean it does not biodegrade. There is a flotilla of plastic the
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The advantages and disadvantages of internet With the expansion of high-technology‚ the use of internet is spreading at a rapid pace. Although many people firmly believe that the invention of internet is by no means beneficial‚ I still consent that it has pros and cons‚ thus should be viewed in both aspects. First and for most‚ internet has completely altered the mode of communication. In the past‚ letters and telegrams were mostly used for distanted contact. Later telephones became dominant‚ but
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The advantage and Disadvantage of Stereotype In recent days‚ the definition of “green tea bitch” has been widely spread all over the Internet. That article listed dozens of characteristics of the so-called “green tea bitch” such as always feigning innocence and speaking quietly. Then there follow various similar definitions like “black tea bitch” that insult people because of those poor stereotypes. When it comes to stereotype‚ most of us will conjure up numerous images in our minds: an elegant
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every people to make the living better. Nowadays‚ technology has advanced in tremendous leaps and bounds. We cannot imagine the world without technological advances such as computer‚ televisions‚ machines and so on. However there are some advantages and disadvantages of technology. First of all‚ technologies play a very important role in society because it makes life easier to live on and less time consuming. Technology has the ability to create shortcuts in working. People do not have to do all
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COMPUTER – ADVANTAGES AND DISADVANTAGES Almost every home‚ office‚ or school has a computer of some kind these days. The word ‘computer’ comes from ‘computing’ i.e. calculating. They can do complicated sums very quickly. We can play games‚ draw pictures and even make sound and music on them. Computers can be used to keep records of diaries‚ slides‚ recipes‚ songs or any information which we want to store and get back sometime later in some form. We can link computers together to share information
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