topics in digital cultureQUESTION 1 - The concept singularity is a hypothesis on the not so far future of human life on earth. According to Ray Kurzweil‚ the scientist‚ inventor‚ futurist and author of The Singularity Is Near: When Humans Transcend Biology; singularity is a stage in our near future where technological development will start to accrue at an inconceivable speed that normal humans cannot keep up with‚ let alone contain. This possible technological change‚ which is not recognizable to
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to deliver it to the user destination. Communication Systems are divided into 3 categories: 1. Analog Communication Systems are designed to transmit analog information using analog modulation methods. 2. Digital Communication Systems are designed for transmitting digital information using digital modulation
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An Introduction to Digital Logic Up until now the labs have dealt with electricity in its analog form where a quantity is described by the amount of voltage‚ or current‚ or charge... expressed as a real number. However a large proportion of electronic equipment‚ including computers‚ uses digital electronics where the quantities (usually voltage) are described by two states; on and off. These two states can also be represented by true and false‚ 1 and 0‚ and in most physical systems are represented
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Digital signal processing Digital signal processing Digital signal processing (DSP) is the mathematical manipulation of an information signal to modify or improve it in some way. It is characterized by the representation of discrete time‚ discrete frequency‚ or other discrete domain signals by a sequence of numbers or symbols and the processing of these signals. The goal of DSP is usually to measure‚ filter and/or compress continuous real-world analog signals. The first step is usually to
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Defining digital literacy Media literacy goes online 1. REPRESENTATION How does it portray the world? 2. LANGUAGE How does it communicate? 3. PRODUCTION Who produced it‚ and why? 4. AUDIENCE How are audiences targeted‚ and how do they read? Web literacy 1. Representation How websites claim to ’tell the truth’‚ and establish their authenticity and authority. The presence or absence of particular viewpoints or aspects of experience. The reliability‚ veracity and bias of
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Comparing and Contrasting There are two forms of radio‚ AM/FM and satellite. Also known as analog and digital‚ both methods of broadcasting are transmitted into a radio system‚ or stereo‚ built with a receiver. Information received into the system is then translated into sound. The sound that is then heard is a song‚ an advertisement‚ or a radio talk show. Both AM/FM and satellite radio produce the same product‚ sound that is listened to. AM/FM stations are transmitted and received through
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there are interesting applications for both single-sensor and multi-sensor image fusion‚ as it will be shown in this report. 2 CHAPTER 2 IMAGE FUSION 2.1 DIGITAL IMAGE PROCESSING Digital image processing is the use of computer algorithms to perform image processing on digital images. As a subcategory or field of digital signal
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PCM CODING/COMPANDING Q1. a)i) The process of quantisation introduces an error or noise component into the quantised signal. Derive an equation for the mean-squared quantisation error in terms of the quantization interval ‘a’. ii) Hence show that the peak signal-to-quantisation noise ratio (SQNR) is SQNR = ( 6n + 4.8 ) dB Where 2 n is the number of quantisation levels. b)i) Linear quantisation is used prior to binary PCM encoding of an analogue baseband signal which has
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Exploration of the digital world My chosen research topic is the natural dietary supplement Spirulina. Spirulina is a simple one-celled microscopic blue-green algae with the scientific name of “Arthrospira platensis”. It is grown in tropical‚ high salt alkaline waters where there is strong sunlight and a pollution free environment. The algae is harvested and spray dried and presents in a powder form for further processing. By volume Spirulina has unusually high concentrations of proteins‚ vitamins
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because these children aren’t getting enough exercise throughout the day which makes it even easier to become obese. With your help and support through Play 60‚ less children can be living this lifestyle and we can help prevent them become overweight. NFL Play 60 is the National Football League’s campaign to encourage kids to be active for 60 minutes a day in order to help reserve the trend of child obesity.
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