Research and Critically Review three General-Purpose Embedded Essay

Research and Critically Review three General-Purpose Embedded Processors - Essay Example This essay stresses that microprocessors came into existence with the advent of computer technology. Since then, there has been a steep increase in the technological advancement with each new technology replacing the old counterpart in a matter of a year or two. Power consumption and dissipation, among these processors, was not a cause of concern as the issue could be easily addressed by use of fans with processors to keep them cool apart from providing an air conditioned environment. This arrangement sounds good for desktop applications only, while mobile applications warrants good performance in open environment with stored power sources (batteries) and no cooling mechanism. This paper declares that embedded microprocessors have a number of associated properties and features of which the following five offer best criteria for differentiating and estimating the performance. CISC processors exhibit better code density than RISC processors due to complex instruction set in CISC, while RISC utilizes a fixed length instruction code. However the RISC architecture offers simple and fast instruction decoding. It is not always advisable to integrate a large number of peripherals and chipsets with the processor. This would increase complexity and may not lead to desired results. It may further, create power consumption problems. A possible way out could be a separate chipset for applications.

Strategic marketing management (examination) Term Paper

Strategic marketing management (examination) - Term Paper Example The culture of an organization may prove so hard to change when change facilitators think of a unitary culture for an organization. In real world, no company operates as a uniform whole, but various units of a company may display different culture, which make subcultures of an entire organization. Changing organizational culture demands a deep understanding of the existing culture and clear knowledge about what culture the management intends to inculcate in the company to replace the old culture. Therefore, planning should always be done based on existing corporate culture because employees are already familiar with what is expected of them and know what values the company embrace. For example, Google gives its employees the freedom to explore new ideas and staff members have easy access to co-founders as well as executives. If the company wanted to implement a culture that takes away the autonomy of employees in the way they work and create a barrier to founders and executive access , it is most likely that employees will rebel against the proposed change. Penetration pricing: under this pricing strategy the company decides to set artificially low prices for its products in order to attract more customers and establish loyalty among existing customers, thus expanding market share. For example, Apple can decide to set prices for it Smartphone lower than its competitors such as Samsung in order to regain its market share. The approach was utilized by France Telecom as well as Sky TV to widen their market share. Skimming pricing: Using this strategy, a company can set high initial price for its product and then gradually lowers the price of the product to gain more market share. For example, Apple Company may have set high price for its Smartphone then later reduced the price amidst competition so that it can make it available to low market end and increase the company’s market share. Franchising is a business

Database Essay Example for Free

Database Essay Database systems are the spinal cord of any health care organization. It can be define as the collection of health data. The use of such systems has improve the health care system for decades helping set standards and even regulations to help the system be more efficiently productive. There are different database architectures available to meet the needs of each organization individually. There is a need for the continuum of database across the health care system. Definition A database is a structure that can store information about multiple types of entities, the attributes of those entities, and the relationships between the entities (Pratt Adamski, 2012, Chapter 1). How data is received, stored, processed, and made available to others has an effect on the success or failure of an organization. The use of different architecture is a most to fit the needs of the organization, however the value of the data still remains in been able to access and extract information from the database system, and the only way this can be reached is by organizing, storing, and analyzing it effectively. For many organizations these systems have become an essential part of their structural and operational success. The effectiveness of databases is based on the fact that from one single, inclusive database much information regarding a range of organizational principles can be obtained. In the health care industry database systems allows information to be shared and available to different users; it can provide an accurate, consistent, and up-to-date information about a patient’s condition and treatment, as well as provide a security measure so that the information is only viewable to those who should see it. Database Architectures A database consists of one or more tables; each containing data stored as individual records. Different database architectures determine how the tables and records are organized or related to one another. According to Penn State University (2008), â€Å"There are four structural types of database management systems: 1. Hierarchical- A hierarchical database is organized in pyramid fashion, like the branches of a tree extending downwards. Related fields or records are grouped together so that there are higher-level records and lower-level records. 2. Network- is similar to hierarchical databases by also having a hierarchical structure. There are a few key differences, however. Instead of looking like an upside-down tree, a network database looks more like a cobweb or interconnected network of records. 3. Relational- connects data in different files by using common data elements or a key field. Data in relational databases is stored in different tables, each having a key field that uniquely identifies each row. Relational databases are more flexible than either the hierarchical or network database structures. 4. Object-oriented- are useful for handling small snippets of information such as names, addresses, zip codes, product numbers, and any kind of statistic or number you can think of. It can be used to store data from a variety of media sources, such as photographs and text, and produce work, as output, in a multimedia format† (Database Fundamentals). The organization and delivery of healthcare services is an information intensive effort. Generally, the efficiency of healthcare operations is drastically affected by the level of the integration of information across all sectors (Wright, n.d.). Healthcare organizations that have not yet make the effort to integrate their data and relate information in an effective and efficient way will find it difficult to stay afloat or even compete within this part of the market. The healthcare market is undergoing changes were information technology has become essential to their every day functional activities. The need of database users across the health care continuum would increase with the demands of technology to be to focus on striving to provide a patient focus services in different entities. Recent advances in policy, practice and research are compelling health care leaders across the continuum of care to move beyond aspiring to be more patient- or person-centered to taking action to realize that vision. A growing body of evidence is linking adoption of a patient-centered approach to care to improved outcomes, including reduced lengths of stay, avoidable readmissions and emergency department visits, and increases in patient satisfaction and employee engagement (Planetree.org, 2012). Database systems serve as a connection pathway to future strategies of care. The need to keep up and try as much as possible to meet the demand is a most in the health care field. Since many changes are been made to health care, database systems would continue evolve, to improve and standardized the ability to organize, save, and share information throughout the system providing a more efficient and effective line of service for their customers and the demands of their markets for years to come.

The Rule of Law and the Separation of Powers

The Rule of Law and the Separation of Powers The rule of law and the separation of powers have a particularly important role to play within the UK’s unwritten constitution. They allocate and restrain power so as to ensure that the constitutional system remains accountable and limited. It is a common observation that the UK does not have a written constitution. However, it is the existence of mechanisms such as respect for the rule of law and the operation of a (more or less) rigorous separation of powers together with devices such as constitutional conventions that allows this jurisdiction to lay claim to the existence of a constitution albeit one which is not formally recorded in a written document. Bradley and Ewing[1] analyse the rule of law by focussing upon three aspects of its operation in contemporary society: the simple maintenance of law and order; the requirement that government be conducted according to the law; the broader concept of the rule of law as a broad political doctrine which goes beyond an analysis of the operation of particular laws and encompasses the values of a free and democratic society. The â€Å"law and order† model which holds that order is better than anarchy. The difficulty with this approach is that it is possible thereunder to characterise a military dictatorship as functioning according to the rule of law since a form of order is maintained and courts may even continue to function to resolve private disputes between citizens. However, the authors make the point[2] that â€Å"†¦constitutionalism and the rule of law will not thrive unless legal restraints apply to the government.† A better approach is to examine the manner in which the courts have the ability to challenge the acts of the Executive and other public authorities. The use of judicial review to scrutinise the actions of Ministers and Government Departments is familiar. Further, in M v Home Office[3] it was even held that a Minister of the Crown could be guilty of contempt of (one of Her Majesty’s) Courts. The argument that the courts had no such powers against ministers met with a stinging rebuttal: â€Å"[This argument] would, if upheld, establish the proposition that the executive obey the law as a matter of grace and not as a matter of necessity, a proposition which would reverse the result of the Civil War.†(!) The principle has been further reinforced by the adoption of the European Convention on Human Rights which now provides a mechanism by which the very laws of this jurisdiction can be examined to ascertain their â€Å"lawfulness†. The concept of the rule of law as a broad political doctrine has generated much debate. One the one hand, it is possible to argue that the law comprises a set of absolute values distilled from centuries of legal experience; on the other it may be argued that the rule of law is a flexible concept which has to be adjusted in accordance with the prevailing social and political circumstances of the time. Professor Joseph Raz[4] argues that the rule of law is a â€Å"political ideal which a legal system may possess to a greater or lesser degree† and that it is â€Å"just one of the virtues that a legal system may possess and by which it is to be judged†. Raz therefore does not invest the rule of law with any inherent moral authority stating expressly that it â€Å"is not to be confused with democracy, justice, equality (before the law or otherwise) human rights of any kind†¦Ã¢â‚¬  While this approach may be highly respected from a jurisprudential perspective, it is of little value in understanding the operation of the rule of law in the UK constitution. A far more preferable and workmanlike analysis is that of Friedrich von Hayek in the seminal work The Road to Serfdom[5]. He propounds the thesis that the function of the rule of law is to ensure that the government is bound in all its actions by rules fixed and announced beforehand. Such a state of affairs makes it possible to predict how the government will employ its coercive powers in a given situation and to plan one’s individual affairs on this basis. Thus the rule of law in the UK constitution is founded upon certainty: laws are democratically debated and publicly promulgated and, as a general rule, do not operate retrospectively. The UK citizen is therefore protected from the â€Å"whim of the tyrant† approach to lawmaking and has the added shield of the power of the courts (domestic and European) to review government action and the validity of the laws themselves. In order for such a system to be maintained, especially in the absence of a written constitution to which recourse may be had in the event of alleged injustice (as in the USA), it is essential that there be a clear separation of powers between the three branches of government: Executive, Legislature and Judiciary. This separation is clear cut in the USA – the President forms the Executive, Congress is the Legislature and the same personnel cannot serve in both (save that the Vice-President chairs the Senate). Government action can be reviewed by the Supreme Court. In the UK, as might be expected given the historical evolution of the constitution as opposed to its imposition by a written document, there are certain anomalies and overlaps. By constitutional convention, the Prime Minister is the leader of the party with the majority in the House of Commons. Ministers of State are recruited for the most part from members of the Commons with a smaller number from the Lords. The sys tem of party political â€Å"whipping† has the result that (save in the case of occasional highly-publicised rebellions) the actions of the Legislature reflect the will of the Government of the day. The Judiciary is more demonstrably independent and some would argue that this is now the more so as a result of the steps to relocate the functions of the highest appellate court in the UK from the Judicial Committee of the House of Lords to an entirely distinguishable Supreme Court. This process has generated much political and constitutional heat. It was strenuously argued that the presence of the Law Lords in the legislative assembly of the House of Lords was offensive to the concept of separation of powers. However, defenders of the status quo pointed to the fact that their Lordships by convention scrupulously refrained from debate upon issues which were likely to come before them in their judicial function. However, Lord Bingham[6] is sceptical as to the purity of the functio n of the judiciary: â€Å"The essential function of the court is then to interpret the law which it infers that parliament intended to make or would have made if it had addressed the point at all. This is not as legislative role, nor is it a purely interpretive role, since the court may have to do a good deal more than elicit the meaning of what parliament has enacted.† The most glaring anomaly in relation to separation of powers in the UK has been the figure of Lord Chancellor. He has served as a member of the Executive by sitting in Cabinet, as a member of the Legislature by acting as Speaker of the House of Lords and as head of the Judiciary. It has been observed[7] that successive Lord Chancellors have relied upon the â€Å"characteristically English argument† that eminent public figures can by definition be trusted so that a formal separation of powers is not required. This argument was propelled to new depths of disingenuousness by Lord Irvine in 1999[8] when he suggested that the presence of the Lord Chancellor straddling all three branches of government actually safeguarded separation of powers by supplying a voice in the Executive and the Legislature that was able to speak out on behalf of judicial independence. As with the rule of law, the European influence may be argued to strengthen rather than diminish separation of powers. Lord Irvine[9] argues that: â€Å"Incorporation [of the European Convention on Human Rights] will enhance the judges’ power to protect the individual against the abuse of power by the state. We have a high quality of judicial review in this country. It has often rightly held the executive to account and improved the quality of administrative decision-making. So the concept of judges protecting the citizen and holding the executive to account is nothing new. What is new is that the judges will be given a framework by parliament within which to interpret the law.† Thus it may be concluded that, notwithstanding the lack of a written constitution, the UK citizen is protected from capricious and unlawful acts of government by respect for the rule of law. This should not be regarded as an abstract philosophical concept: the principle operates within this jurisdiction to ensure that acts of government are transparent and predictable. When they fall short of these standards, the fact that there is a demonstrable independence of Judiciary and Executive (as has been seen the independence of the Legislature from the Executive is more questionable) means that the actions of government can be challenged and, if necessary, overturned. These various constantly evolving mechanisms ensure that the exercise of power within the UK constitution is accountable and limited. Bibliography Alder, J., General Principles of Constitutional and Administrative Law, (4th Ed., 2002) Allen, M. Thompson, B., Cases and Materials on Constitutional and Administrative Law, (7th Ed., 2003) Barnett, H., Constitutional and Administrative Law, (5th Ed., 2004) Bradley, A. Ewing, K., Constitutional and Administrative Law, (13th Ed., 2003) 1 Footnotes [1] Constitutional and Administrative Law, (13th Ed., 2003), Chapter 6 [2] Op. Cit., p.96 [3] [1994] 1 AC 377 [4] Quoted in Barnett, Constitutional and Administrative Law, (5th Ed., 2004) at p.77 [5] See Barnett, Op. Cit., p.79 et seq [6] (1996/97) 7 King’s College Law Journal 15-16 [7] Alder, General Principles of Constitutional and Administrative Law, (4th Ed., 2002) at p.114 [8] Speech to the Third Worldwide Common Law Judiciary Conference, Edinburgh, 5 July 1999 [9] Constitutional Reform and a Bill of Rights, [1997] European Human Rights Law Review 483

Graduation Speech: Ill Never Forget :: Graduation Speech, Commencement Address

During the years I've been at Best College, I have learned what it means to be an adult and make choices that determine my future. I began attending this college as when I was a senior at County High School. My graduating class was just over 100 students, and consisted of students predominately like myself. My first class here introduced me to a more diverse group of students and I had the opportunity to study with people of all ages and ethnicities. As I became involved with the college's art and literary magazine and the student newspaper, I had additional opportunities to work with people from around the world. It's difficult to comprehend how much we can learn from each other until we are given that opportunity, and I know that I was given that opportunity here at Best College. Now, after two years of hard work, I am ready to move on. Although I'm excited about the next chapter in my life, I will never forget the tremendous people I've met at Best College. Many of the students I've met and the teachers I've had the privilege to learn from, have made significant impacts on my life. Stanley Kunitz wrote a poem called The Layers, of which I would like to share an excerpt with you: I have walked through many lives, some of them my own, and I am not who I was, though some principle of being abides, from which I struggle not to stray. When I look behind, as I am compelled to look before I can gather strength to proceed on my journey, I see the milestones dwindling toward the horizon and the slow fires trailing from the abandoned camp-sites, over which scavenger angels wheel on heavy wings. In a rising wind the manic dust of my friends, those who fell along the way, bitterly stings my face. Yet I turn, I turn, exulting somewhat, with my will intact to go wherever I need to go, and every stone on the road precious to me. In my darkest night, when the moon was covered and I roamed through wreckage, a nimbus-clouded voice directed me: "Live in the layers, not on the litter." Though I lack the art to decipher it, no doubt the next chapter in my book of transformations

Inside Every Modern Computer O :: essays research papers

Inside every modern computer or other data-processing wonder is a microprocessor bearing millions of transistors sculpted from silicon y chemicals and light. Silicon, the second most abundant element on Earth, is used extensively in transistors, integrated circuits, photoelectric devices, and other electronic devices. A pure crystal of silicon does not conduct electricity unless traces of other substances are diffused or doped onto it. Therefore silicon must be manufactured in a specific way in order for it to yield electrons for a current. All manufacturing of silicon takes place in a "clean room" which is an area where each one foot cube of air must contain fewer than 1000 tiny specks of dust and zero humidity. The temperature is maintained at a constant 68 degrees Fahrenheit and all workers have to wear coats, gloves, masks, and overshoes. This is necessary because even one dust particle or water droplet can ruin a batch of chip production. The manufacturing of a silicon chip starts when silica, the main component of sand, is heated with carbon which makes 98 percent pure silicon. This is then dissolved in hydrochloric acid. The resulting liquid is fractionally distilled to separate almost all of the impurities.The remaining liquid is then heated in a hydrogen tmosphere, which produces the purest silicon possible. This silicon, however, is in the form of many crystals of different sizes and orientations. This silicon goes through the Czochralski pulled crystal process in which it is melted in a large crucible into which a probe, tipped with a small seed crystal is immersed. Silicon atoms attach themselves to the seed in perfect alignment with its structure while it is rotated and pulled slowly upward. The seed grows into a three foot long, cylindrical, single crystal. Silicon this pure is hard, dark grey in color and lusterous. The giant crystal of silicon is next ground into a perfect cylinder, which is sliced by a diamond-tipped saw into wafers 1 mm thick. Using particles one-tenth of a micrometer wide, the faces of these wafers are polished to give a smooth base onto which up to two hundred dentical chips can simultaneously be photo-etched. The base of the chip is next doped with small traces of boron. First the silicon base is coated with a layer of insulating silicon dioxide and photoresist, a light-sensitive material. This hardens only where ultraviolet light, projected through a mask, strikes it. The chip is immersed in solvent to wash away the soft resist shielded by the mask.

South Africa

Sindy Veritus March 9, 2013 Global Studies: Argumentative Essay South African Apartheid Apartheid in South Africa was a system of racial segregation enforced through legislation by the National Party government from 1948 to 1994 of South Africa. Racial segregation in South Africa began in colonial times by the Dutch and British. Apartheid as an official policy was introduced following the general election in 1948. Apartheid was developed after War World II by the Afrikaner-dominated National Party and was first colonized by the Dutch and then the English came in and took most of it away.The population of South Africa was classified into four groups which was the Black, White, Indian, and Colored. The Colored group included people regarded as being of mixed descent including people of Bantu, and European ancestry and much more. Knowing that Apartheid was a system of laws created to keep the white population in control. The Group Areas act of 1951 controlled people where they could of live. The black where driven far away from their city, although their jobs were still in the cities in the white neighborhood.The Bantu education Act meant that the black students were disadvantaged with their education. â€Å"Bus fares were expensive and catching public transport everyday was expensive and caused hardship and depression for the black people. † (Wikipedia) The apartheid policy was highly effective of achieving its goal of privileged conduct for whites. On the other hand, the white population supported apartheid because they felt it was there to own the land of South Africa.There were many white pro apartheid people because of the much larger population of black South Africans causing the white people to believe that if the black were given rights and freedom, they would of no longer have political power. The white people were worried because they thought that their race would be taken over and they would lose the control that they always had. As a final point , In February 1990 President FW de Klerk announced the release of Nelson Mandela and began the exclusion of the Apartheid system.In 1992 a white council approved the reform process and on April 27, 1994 the first democratic elections were held in South Africa with people of all different races being able to vote. After the Apartheid came to an end in South Africa, people had more freedom. The Africans now have a little more money now that it’s not all going to the white. South Africa is now peaceful and the anniversary of the elections, which was held on April 27, is celebrated as a public holiday in South Africa known as Freedom Day.