Monday, May 25, 2020
compare and contrast two restaurants - 703 Words
Nagihan Ekmekci Compare and contrast two restaurants Do you want to eat out in Datteln, a small town in Germany?There are a lot of restaurants that you can choose from. They vary greatly in appearance, menu, service and prices. Preference depends on the priority of people. There are two restaurants in Datteln that are worth a try:Lotusblume and Marmaris Dà ¶ner. They have some similarities and differences. Some people prefer to eat at stylish restaurants. Lotusblume in Datteln is a traditional Chinese restaurant with an authentic Chinese decoration. The red carpets on the floor and the Asian paintings on the walls provide a fascinating ambiance. Marmaris Dà ¶ner, however,â⬠¦show more contentâ⬠¦When you decide where to eat you also consider the menu- what do you fancy eating? Lotusblume offers traditional Chinese cuisine, whereas Marmaris Dà ¶ner offers the traditional Turkish Dà ¶ner. The menu of the Lotusblume is quite large.In contrast Marmaris Dà ¶ner has some sort of fix menus to choose from. Yet, the foods of both restaurants are well- serviced, fresh and tasty. In conclusion, the differences between the two restaurantsShow MoreRelatedPurchase Of A New Toaster For The Restaurant Of Healthy Food1082 Words à |à 5 Pagesfunding for the purchase of a new toaster for the restaurant of healthy food. Summary The need in purchasing a new toaster has become prominent due to the increased demand of the clients in the qualitative and healthy food and a pressing need to expand the menu and introduce new dishes and recipes. The purchase of a toaster can strongly assist in meeting this requirement, since it offers a great variety of new cooking solutions for the restaurant of the healthy food. Therefore, I am going to suggestRead MoreEssay on Htm 250 Wk 8 Assignment 2 Choosing a Distributor643 Words à |à 3 PagesDistributors, or SW Wholesale Foods), for restaurants and conduct an in-depth research study. Write a five to six (5-6) page paper in which you: 1. Choose one (1) distributor company and provide a brief overview including: a. a history of the company b. the geographical areas that they serve c. a high-level list of supplies they offer (by category) d. the main competitors 2. Choose one (1) competitive distribution company and compare and contrast five (5) similar products (offered by bothRead MoreFinancial Statements Paper Part 21193 Words à |à 5 PagesLandryââ¬â¢s Restaurants, Inc Financial Statements II Classic Payroll Services Acc 497 October 5, 2010 Abstract The previous Landryââ¬â¢s Restaurants, Inc Financial Statements paper discussed the financial stability of the company from an independent viewpoint. The comparison of the assessment provided to the management perspective provided in the Annual Report will now be discussed. Concerns from management, and recommendations to address weaknesses and the managements concerns will be reviewedRead MoreFast Plants Lab Report1148 Words à |à 5 Pagesby, an unhealthy, diet. In the United States, 25% of Americans eat fast food every day, which can cause heart disease, hypertension and diabetes, starting with overweight. McDonalds, Taco Bell, Wendyââ¬â¢s, and Burger King are very popular, fast food restaurant selling their burgers and fries in the airport, street shop, next to Wal-Mart and college. The cartoon on the right was posted by cartoon artist Piraro on August 10, 2010. The cartoonists opinion is ironic because pigeons will get fat by eatingRead MoreCompare and Contrast Essay1073 Words à |à 5 PagesCompare-and-Contrast Essay Juanita Stanberry Com 155 May 11, 2013 Benjamin Ovando In this essay I will be comparing the similarities and differences between Burger King and Dairy Queen. I will be covering the two restaurants styles, food types, what they are known for, and information about their establishment. I will be providing accurate and interesting facts about the two restaurants. I will also be providing information about each restaurant before I compare the two differencesRead MoreComparison Of The Fever Tree And The Waxwork966 Words à |à 4 PagesWaxwork are intriguing and mysterious stories with many parts of suspense to them. There are two comparisons and two contrasts literary terms that will explain in detail what these are like and what emotions then can bring forward. Irony, foreshadowing, characterization, and mood are four literary terms that are abundantly showed and have a large impact on understanding the stories. The first literary term compare topic is irony. When Tricia leaves Ford to die, it is ironic because he thought he was goingRead MoreProgrammed and Non Programmed Decision Making977 Words à |à 4 Pages1. Compare and contrast programmed and nonprogrammed decision-making in organizations and give two realistic business examples of each of these two types of decision-making. Programmed decision are decisions that have been made so many times in the past that managers have developed rules or guideline to be applied when certain situations are expected to occur. Programmed decision making is used when an inventory manager of mc Donalds decides to order beef patty stocks because the stocks areRead MoreObesity Is A Serious Public Concern862 Words à |à 4 PagesObesity has increased rapidly in the U.S. since the 1970s. At the same time, the number of fast food restaurants more than doubled over the same time period. Exposes such as ââ¬Å"Fast Food Nationâ⬠(Schlosser, 2001) and ââ¬Å"Supersize Meâ⬠(Spurlock, 2004) highlight the popular perception that these two trends may be relatedââ¬âthe availability of fast food may have caused at least some of the increase in obesity. Obesity has been linked to hypertension, cardiovascular diseases, diabetes, kidney problems andRead MoreThe Food And Beverage Management1506 Words à |à 7 Pagesis very significant function for each and every hospitality organization. The current research report focuses on the food and beverage operation management (Heizer and et al, 2009). The whole research report is based on case study of Queens Head restaurant and its food and beverage management. The current study includes the assessment of the operation system and its effectiveness for organization. Further, it focuses on the critical appraisal of the operation planning and implementation within theRead MoreAlternate Dispute Resolution at Darden Restaurants and Hooters of America825 Words à |à 4 PagesADR at Darden Restaurants and Hooters of America More companies are turning to alternate dispute resolution (ADR) as an alterative to the judicial system for settling employee disputes. There are some clear advantages and disadvantages to ADR for both employers and employees. The best-designed ADR programs are those that are fair and impartial. A good ADR program should seek to find the best possible outcome for both parties while saving time and money and preserving relationships. The least
Thursday, May 14, 2020
Aristotle, Plato, And Rousseau What Is Natural And The...
Professor Graham MPP 601.01 March 19, 2016 Aristotle, Plato, and Rousseau: What is Natural and The Nature of Man As mentioned in the essay prompt, authors in this course have used the term(s) nature/natural in various ways to frame and support their arguments. As I identified in my previous paper, ââ¬Å"In Book 1 of Aristotle s Politics, Aristotle begins by defining the city and or political community while also making the case that nearly everything exist for the sake of achieving some sort of good.â⬠It is here that Aristotle introduces the concept of what is natural. He does this by laying the foundation of his political theory and arguing that 1) the city exist by nature and 2) politics is ââ¬Å"naturalâ⬠because man is by nature a ââ¬Å"political animalâ⬠. In the Republic of Plato, Plato first uses the term ââ¬Å"natureâ⬠in describing a state of being. He later uses the term in the context of the identifying the ââ¬Å"nature of justiceâ⬠; the central theme and purpose of The Republic, the notion that it is better to be just than unjust. In A Discourse on Inequality, Rousseau s first use of the term ââ¬Å"natureâ⬠is in the context of describing the way things just are. Over time his use of the term shifts as his philosophy on human nature/the nature of man is expressed. While each of these authors use the term nature/natural in very different ways to support their arguments, they also use them similarly. Throughout their works, their use of the term(s) are both singular and multiple/plural.Show MoreRelatedHuman Nature : Good Or Evil1053 Words à |à 5 PagesHuman Nature: Good or Evil All ideologies, including some economic ideologies, produce theories of human nature in order to establish fundamental human rights and to establish a more productive form of government. Human nature refers to the distinguishing characteristics of humans, including ways of thinking, feeling and acting; it is the moral principles that construct certain standards of behavior, which every person is entitled to simply because they are a human being. Many philosophers such asRead MoreThomas Hobbes And John Locke1256 Words à |à 6 Pagesgreatly from the views of Plato, Socrates (as seen through Platoââ¬â¢s teachings), and Aristotle, modern philosophers focused more prominently on human nature instead of the pressing matters of diverse government systems. Granted, Thomas Hobbes and John Locke do discuss political systems to some extent, but they are nowhere near as invested in the ideas of the just and political systems which enticed Plato and Socrates. John Locke was a forward thinker who believed that man is inherently a social animalRead MorePolitical Philosophy, By Steven Cahn1197 Words à |à 5 PagesIn Steven Cahn s book, Political Philosophy, The Essential Texts, philosophers such as Socrates, Plato, Aristotle, Hobbes, Locke and Rousseau created the circumstances to enable the fundamental principals of philosophy and politics. These knowledgeable, astute and significant men have helped to achieve the structure of our past and present democracy as well as a plan of action for the rights and values that we as citizens can all relate to today. They are grounded in their thinking and tied togetherRead MoreAristotle s View On Human Nature Essay2321 Words à |à 10 Pagesquote by Aristotle was taken from ââ¬ËAristotle: a Very Short Introductionââ¬â¢ and there is no-one of whom this is more true than Aristotle as he was dedicated to every possible discipline he could sink his teeth into making him one of the utmost key figures within philosophy, not only in classical philosophy but he is still regarded as influential in modern philosophy. As well as being a devoted biologist, botanist, moral philosopher, psychologist, zoologist and many more things besides Aristotle held aRead MoreAnalysis Of David Hume s Theory Of Justice2868 Words à |à 12 Pagesat a seemingly simple concept: Property ownership. David Hume defined property as nothing but a stable possession under the mutually respected understanding of society. Basically, Man creates society to enforce justice which allows man to own and use property as he desires. A grand idea but is it so simple? If Man creates society to protect this arbitrary concept, does society have the right to take this right away? John Rawls felt that society was responsible for deciding who properly owns propertyRead MoreThe Good Ghanaian Society 1068 Words à |à 5 PagesThe Good Ghanaian Society While the end of that search [of the Good Society] remains elusive, I am convinced that the search itself isnââ¬â¢t illusive. ââ¬âJames Oââ¬â¢toole What constitutes a good society to each and every individual within that society would be a different answer. This is because we speak different tongues, desire different ends, and have different basic assumptions about where the Ghanaian society, and the corporations we work in, should be heading. Despite this kaleidoscope of opinionsRead MorePolitical Science And Political Philosophy Essay3559 Words à |à 15 Pagespolitical conflict. Political philosophy will help the citizens to understand why things need to be changed.â⬠Political philosophy explores the nature, principles, and rationale that underlie the exercise of governmentâ⬠.[Hudelson,1999] Plato, Aristotle, Machiavelli, Karl Marx, Thomas Hobbes, john Locke, Jean-Jacques Rousseau were well known major political thinkers. Plato gives the concept of ideal state where the state is like a human including three elements-philosophers, soldiers and workers .The philosopherRead MoreThe Political Of Political Science Essay2347 Words à |à 10 PagesIntroduction: According to Aristotleââ¬Å"Man is by nature a political animal and he only by nature and by mere accident is without state is either above humanity or below itâ⬠Political science is ultimately related with the word politics which is derived from the Greek word ââ¬Å"Polisâ⬠.The origin of political thought in the west and therefore goes back to the Greece.Political science is the study of the state and the government.And political philosophy is considersd to be a sub discipline of political scienceRead MorePolitical Philosophy and Plato Essay9254 Words à |à 38 PagesSocrates 469 BCââ¬â399 BC, was a classical Greek Athenian philosopher. Credited as one of the founders of Western philosophy, he is an enigmatic figure known chiefly through the accounts of later classical writers, especially the writings of his students Plato and Xenophon, and the plays of his contemporary Aristophanes. Many would claim that Platos dialogues are the most comprehensive accounts of Socrates to survive from antiquity. Through his portrayal in Platos dialogues, Socrates has become renownedRead MoreLocke vs Mill1618 Words à |à 7 PagesMankind has been fighting for Liberty and Freedom for as long as we can remember. Liberty and freedom has been a topic which has been debated for many decades. What does it mean to be free , and how far can we go to strive for freedom. These important questions have been answered and studied by two of the greatest English philosophers, John Locke and John Stuart Mill. Locke and Mill men will attempt to uncover the mysteries of Liberty and Freedom and unveil the importance of being free. This essay
Wednesday, May 6, 2020
The Conceptual Connection Between Art And Aesthetics
Joseph Kosuth claims his art is purely conceptual. What does this mean? Is he saying the work only exists as a conception, an idea? Can we therefore assume visual judgements have no relevance to his works ââ¬â or in that case the work of other Conceptual artists? Is he also saying that when the work is ââ¬â¢madeââ¬â¢ (by this I mean displayed to his laid out instructions) it has no visual base to educate and tell the concept or idea he wishes to be measured? Does he require his art work be considered to have no aesthetic reflection and therefore not be deliberated visually by the viewer? Should the artist have an acknowledgment of this when it is shown as an artwork in an art space? In ââ¬ËArt after Philosophyââ¬â¢ (1969) Kosuth said ââ¬ËIt is necessary toâ⬠¦show more contentâ⬠¦To do this I will consider established modernist aesthetic theory and its relevance in the desire of the conceptual artists to condemn and disengage from it. Immanuel Kant interpreted aesthetics as ââ¬Ëa field giving priority to form over functionââ¬â¢. Beauty, he said, ââ¬Ëwas independent of any particular figure with which it was attachedââ¬â¢. ââ¬ËA horse might be beautiful apart from whether it raced wellââ¬â¢. I will say at this point I will not further examine Kantââ¬â¢s Reflective Judgments but will anchor them in alliance to Greenbergââ¬â¢s taste and aesthetic values. My focus after considering theories of the changing aesthetic and challenging philosophies of art in the 1960ââ¬â¢s will be to specifically reflect on Kosuthââ¬â¢s One and Three Chairs and his claims of its anti-aesthetics. Where we were. Conceptual art is in part a reaction against formulism. The revolt against the reduction and refinement of a medium towards an aesthetic defined outcome. In Art and Philosophy, Kosuth dismissed formalism, modernism and Greenberg as a ââ¬Ëcritic of tasteââ¬â¢. Kosuth stressed that because aesthetics is disconnected from function or use it is connected to taste. And Kosuth said Greenbergââ¬â¢s taste was tied to the fifties and therefore not only out of date but out of time. Greenberg said that modern art should follow a process of ââ¬Ëprogressive reduction and refinement toward the goal of defining the absolutely essentialââ¬â¢. That painting, should be defined as a painting and nothingShow MoreRelatedConceptual Gardening : An Architectural Style Of Gardening1663 Words à |à 7 Pagesto break down conceptual boundaries and hold significant meaning when used to their fullest potential.1 With traditional garden design, there is a heavier emphasis on nature and environmental sustainability as seen through the usage of foliage and stones as primary building materials. Over time however, a new approach towards gardening has been developed; one that allows for this medium to break free of its conventional restraints. This is attributed to the birth of the conceptual art movement in theRead MoreHarlem Renaissance Essay1341 Words à |à 6 PagesPower movement. Madhubutiââ¬â¢s, a black arts movement members relationship with Harlem Renaissance is one of the youngest African dont like politics and aesthetic of the previous generation of black artists. The ââ¬Å"utmost impatienceâ⬠I would about how Black Arts movement member expressed themselves to the Harlem Renaissance and its allegedly excessive white appeared slightly ironic in some art work including Amiri Baraka and Larry Nealââ¬â¢s Black Fire. Black Arts aesthetic critique Harlem Renaissance paperRead MoreThe Impact Of Wwi For Artists Paul Nash And Marcel Duchamp Essay1049 Words à |à 5 PagesResearch Essay Impact of â⬠¨WWI for artists-Paul Nash and Marcel Duchamp As a number of leading artists got involved in the War, most of the art campaigns stopped. Individual artistic creations became less radical and started to step down from abstraction to concrete representations. In particular, the program in which the government appointed the artists as war correspondents has resulted in some of the most exceptional artworks of this century. This is, perhaps, because the artists have been exposedRead MoreAn Italian Performance Artist Who Is Considered Part Of The Movement Called Relational Aesthetics1489 Words à |à 6 PagesVanessa Beecroft is an Italian performance artist who is considered part of the movement called relational aesthetics. In relational art, the viewer is the stimulant for the work, but not the focus; the work is not truly interactive, but the viewer feels like they are a part of it. Relational aesthetics artwork typically involves large installations in a space, but Beecroftââ¬â¢s work primarily uses female models and human fo rms as the artwork, both clothed and nude, giving her work as a whole a veryRead MoreGraphic Design And Interface Design949 Words à |à 4 Pagesdaily needs of people as well as improving the quality of their lives. Not only that, design, as a part of the arts industries, also need aesthetic judgment. That is why visual designer came up. In this essay, I will contrast graphic design with interface design , compare them in three different ways including historical technological and conceptual development and discuss the connection as well as development potential of them. In any case, the development trend of two kinds of design industriesRead MoreSchool Of Humanities And Communication Arts1126 Words à |à 5 PagesAssignment Cover Sheet School of Humanities and Communication Arts Student Name Samson Kocholatharayil James Student Number 17455451 Unit Name and Number 101295 - Aesthetics Tutorial Group Thursday 1pm - 2pm Tutorial Day and Time Thursday 1pm - 2pm Session / Semester Spring 2014 Lecturer/Tutor Michael Symonds Title of Assignment Assessment 1 Length 1,500 Due Date 8th September 2014 Date Submitted 8th September 2014 Campus Enrolment Bankstown DECLARATION I hold a copy of this assignment if theRead MoreExplanations of the Branches of Philosophy1358 Words à |à 6 Pagesbranches to aid in the comprehension of the orderly and logical approach to philosophy. The six branches are Metaphysics, Epistemology, Ethics, Aesthetics, Political philosophy, and social philosophy. The first branch in understanding in understanding philosophy is Metaphysics is the branch of philosophy that handles the first concepts of things, including conceptual principles like being, knowing, substance, cause, identity, time, and space. Metaphysics is the first branch of philosophy credible forRead MorePhotographic Images Hanging On The Gallery Wall1527 Words à |à 7 Pages Chapter Five Photographic Art Images. There are many books, fine art prints, articles in journals and magazines about architectural photography by some excellent photographers, emphasising architectureââ¬â¢s visual strength, design and conceptual quality, without which there would be no challenges for the photographer to attempt to capture in the first instance. Architectural photography has an immense capacity to stimulate the wonder of the man-made world in a virtuoso manner. The intrinsic worthRead MoreEssay On Play Space1350 Words à |à 6 Pagescity hall and has been opened since 1896 (City of Kitchener,2017 )The park has multiple play spaces such as the basketball court, Horseshoe pit, and it also has multiple open spaces for play such as soccer and football It is also riddled with public art such as the luggage project made in 2008 that represents the multi culturalism of the city of Kitchener and it consist of eight carved suitcases that are placed throughout the park with labels with a message from Kitchener residents of multiple differentRead MoreThe Design Of The Architecture Profession1359 Words à |à 6 Pagesthe architect not as an individual but rather look into what the profession should be. Peggy splits her work into three main aspects. Firstly, Art as work/labor, she implies that labor and aesthetic have come hand in hand with one another sharing a historical connection to each other. As such, the architect is potentially an artist that plays with an aesthetic principle that society frames as labor. This labor serves customs and rules within the social fabric that collaborate within a value. She distinguishes
Tuesday, May 5, 2020
Digital Image Processing free essay sample
Digital signal processor [edit] Typical characteristics Digital signal processing algorithms typically require a large number of mathematical operations to be performed quickly and repetitively on a set of data. Signals (perhaps from audio or video sensors) are constantly converted from analog to digital, manipulated digitally, and then converted again to analog form, as diagrammed below. Many DSP applications have constraints on latency; that is, for the system to work, the DSP operation must be completed within some fixed time, and deferred (or batch) processing is not viable. A simple digital processing system Most general-purpose microprocessors and operating systems can execute DSP algorithms successfully, but are not suitable for use in portable devices such as mobile phones and PDAs because of power supply and space constraints. A specialized digital signal processor, however, will tend to provide a lower-cost solution, with better performance, lower latency, and no requirements for specialized cooling or large batteries. The architecture of a digital signal processor is optimized specifically for digital signal processing. Most also support some of the features as an applications processor or microcontroller, since signal processing is rarely the only task of a system. Some useful features for optimizing DSP algorithms are outlined below. [edit] Architecture By the standards of general purpose processors, DSP instruction sets are often highly irregular. One implication for software architecture is that hand-optimized assembly is commonly packaged into libraries for re-use, instead of relying on unusually advanced compiler technologies to handle essential algorithms. Hardware features visible through DSP instruction sets commonly include: â⬠¢Hardware modulo addressing, allowing circular buffers to be implemented without having to constantly test for wrapping. â⬠¢A memory architecture designed for streaming data, using DMA extensively and expecting code to be written to know about cache hierarchies and the associated delays. â⬠¢Driving multiple arithmetic units may require memory architectures to support several accesses per instruction cycle â⬠¢Separate rogram and data memories (Harvard architecture), and sometimes concurrent access on multiple data busses â⬠¢Special SIMD (single instruction, multiple data) operations â⬠¢Some processors use VLIW techniques so each instruction drives multiple arithmetic units in parallel â⬠¢Special arithmetic operations, such as fast multiply-accumulates (MACs). Many fundamental DSP algorithms, such as FIR filters or the Fast Fourier transform (FFT) depend heavily on multiply-accumulate performance. Bit-reversed addressing, a special addressing mode useful for calculating FFTs â⬠¢Special loop controls, such as architectural support for executing a few instruction words in a very tight loop without overhead for instruction fetches or exit testing â⬠¢Deliberate exclusion of a memory management unit. DSPs frequently use multi-tasking operating systems, but have no support for virtual memory or memory protection. Operating systems that use virtual memory require more time for context switching among processes, which increases latency. edit] Program flow â⬠¢Floating-point unit integrated directly into the datapath â⬠¢Pipelined architecture â⬠¢Highly parallel multiplierââ¬âaccumulators (MAC units) â⬠¢Hardware-controlled looping, to reduce or eliminate the overhead required for looping operations [edit] Memory architecture â⬠¢DSPs often use special memory architectures that are able to fetch multiple data and/or instructions at the same ti me: oHarvard architecture oModified von Neumann architecture â⬠¢Use of direct memory access â⬠¢Memory-address calculation unit edit] Data operations â⬠¢Saturation arithmetic, in which operations that produce overflows will accumulate at the maximum (or minimum) values that the register can hold rather than wrapping around (maximum+1 doesnt overflow to minimum as in many general-purpose CPUs, instead it stays at maximum). Sometimes various sticky bits operation modes are available. â⬠¢Fixed-point arithmetic is often used to speed up arithmetic processing â⬠¢Single-cycle operations to increase the benefits of pipelining [edit] Instruction sets Multiply-accumulate (MAC, aka fused multiply-add, FMA) operations, which are used extensively in all kinds of matrix operations, such as convolution for filtering, dot product, or even polynomial evaluation (see Horner scheme) â⬠¢Instructions to increase parallelism: SIMD, VLIW, superscalar architecture â⬠¢Specialized instructions for modulo addressing in ring buffers and bit-reversed addressing mode for FFT cross-referencing â⬠¢Digital signal processors sometimes use time-stationary encoding to simplify hardware and increase coding efficiency. [edit] History Prior to the advent of stand-alone DSP chips discussed below, most DSP applications were implemented using bit-slice processors. The AMD 2901 bit-slice chip with its family of components was a very popular choice. There were reference designs from AMD, but very often the specifics of a particular design were application specific. These bit slice architectures would sometimes include a peripheral multiplier chip. Examples of these multipliers were a series from TRW including the TDC1008 and TDC1010, some of which included an accumulator, providing the requisite multiply-accumulate (MAC) function. In 1978, Intel released the 2920 as an analog signal processor. It had an on-chip ADC/DAC with an internal signal processor, but it didnt have a hardware multiplier and was not successful in the market. In 1979, AMI released the S2811. It was designed as a microprocessor peripheral, and it had to be initialized by the host. The S2811 was likewise not successful in the market. In 1980 the first stand-alone, complete DSPs ââ¬â the NEC à µPD7720 and ATT DSP1 ââ¬â were presented at the International Solid-State Circuits Conference 80. Both processors were inspired by the research in PSTN telecommunications. The Altamira DX-1 was another early DSP, utilizing quad integer pipelines with delayed branches and branch prediction. The first DSP produced by Texas Instruments (TI), the TMS32010 presented in 1983, proved to be an even bigger success. It was based on the Harvard architecture, and so had separate instruction and data memory. It already had a special instruction set, with instructions like load-and-accumulate or multiply-and-accumulate. It could work on 16-bit numbers and needed 390 ns for a multiply-add operation. TI is now the market leader in general-purpose DSPs. Another successful design was the Motorola 56000. About five years later, the second generation of DSPs began to spread. They had 3 memories for storing two operands simultaneously and included hardware to accelerate tight loops, they also had an addressing unit capable of loop-addressing. Some of them operated on 24-bit variables and a typical model only required about 21 ns for a MAC (multiply-accumulate). Members of this generation were for example the AT DSP16A or the Motorola DSP56001. The main improvement in the third generation was the appearance of application-specific units and instructions in the data path, or sometimes as coprocessors. These units allowed direct hardware acceleration of very specific but complex mathematical problems, like the Fourier-transform or matrix operations. Some chips, like the Motorola MC68356, even included more than one processor core to work in parallel. Other DSPs from 1995 are the TI TMS320C541 or the TMS 320C80. The fourth generation is best characterized by the changes in the instruction set and the instruction encoding/decoding. SIMD extensions were added, VLIW and the superscalar architecture appeared. As always, the clock-speeds have increased, a 3 ns MAC now became possible. [edit] Modern DSPs Modern signal processors yield greater performance; this is due in part to both technological and architectural advancements like lower design rules, fast-access two-level cache, (E)DMA circuitry and a wider bus system. Not all DSPs provide the same speed and many kinds of signal processors exist, each one of them being better suited for a specific task, ranging in price from about US$1. 0 to US$300 Texas Instruments produce the C6000 series DSPââ¬â¢s, which have clock speeds of 1. 2 GHz and implement separate instruction and data caches. They also have an 8 MiB 2nd level cache and 64 EDMA channels. The top models are capable of as many as 8000 MIPS (instructions per second), use VLIW (very long instruction word), perform eight operations per clock-cycle and are compatible with a broad range of external periphera ls and various buses (PCI/serial/etc). TMS320C6474 chips each have three such DSPs, and the newest generation C6000 chips support floating point as well as fixed point processing. Freescale produce a multi-core DSP family, the MSC81xx. The MSC81xx is based on StarCore Architecture processors and the latest MSC8144 DSP combines four programmable SC3400 StarCore DSP cores. Each SC3400 StarCore DSP core has a clock speed of 1 GHz. Analog Devices produce the SHARC-based DSP and range in performance from 66 MHz/198 MFLOPS (million floating-point operations per second) to 400 MHz/2400 MFLOPS. Some models support multiple multipliers and ALUs, SIMD instructions and audio processing-specific components and peripherals. The Blackfin family of embedded digital signal processors combine the features of a DSP with those of a general use processor. As a result, these processors can run simple operating systems like ? CLinux, velOSity and Nucleus RTOS while operating on real-time data. NXP Semiconductors produce DSPs based on TriMedia VLIW technology, optimized for audio and video processing. In some products the DSP core is hidden as a fixed-function block into a SoC, but NXP also provides a range of flexible single core media processors. The TriMedia media processors support both fixed-point arithmetic as well as floating-point arithmetic, and have specific instructions to deal with complex filters and entropy coding. Most DSPs use fixed-point arithmetic, because in real world signal processing the additional range provided by floating point is not needed, and there is a large speed benefit and cost benefit due to reduced hardware complexity. Floating point DSPs may be invaluable in applications where a wide dynamic range is required. Product developers might also use floating point DSPs to reduce the cost and complexity of software development in exchange for more expensive hardware, since it is generally easier to implement algorithms in floating point. Generally, DSPs are dedicated integrated circuits; however DSP functionality can also be produced by using field-programmable gate array chips (FPGAââ¬â¢s). Embedded general-purpose RISC processors are becoming increasingly DSP like in functionality. For example, the ARM Cortex-A8 and the OMAP3 processors include a Cortex-A8 and C6000 DSP. [edit] See also â⬠¢Digital signal controller [edit] References 1. ^ Yovits, Marshall C. (1993). Advances in computers. 37. Academic Press. pp. 105ââ¬â107. http://books. google. com. sg/books? id=vL-bB7GALAwCpg=PA105. 2. ^ Liptak, Bela G. (2006). Instrument Engineers Handbook: Process control and optimization. 2. CRC Press. pp. 11ââ¬â12. http://books. google. com/books? id=TxKynbyaIAMC=PA11.
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