Professors Ahmeds Journey into America The Challenge of Islam

Review These Study Questions for A Rose for Emily

Review These Study Questions for 'A Rose for Emily' A Rose for Emily is a favorite American short story by William Faulkner.   Summary The narrator of this story represents several generations of men and women from the town.  The story begins at the huge funeral for Miss Emily Grierson. Nobody has been to her house in 10 years, except for her servant. The town had a special relationship with Miss Emily ever since it decided to stop billing her for taxes in 1894. But, the newer generation wasnt happy with this arrangement, and so they paid a visit to Miss Emily and tried to get her to pay the debt. She refused to acknowledge that the old arrangement might not work anymore, and flatly refused to pay.Thirty years before, the tax collecting townspeople had a strange encounter with Miss Emily about a bad smell at her place. This was about two years after her father died, and a short time after her lover disappeared from her life. Anyhow, the stink got stronger and complaints were made, but the authorities didnt want to confront Emily about the problem. So, they sprinkled lime around the house and the smell was eventual ly gone. Everybody felt sorry for Emily when her father died. He left her with the house, but no money. When he died, Emily refused to admit it for three whole days. The town didnt think she was crazy then, but assumed that she just didnt want to let go of her dad. Next, the story doubles back and tells us that not too long after her father died Emily begins dating Homer Barron, who is in town on a sidewalk-building project. The town heavily disapproves of the affair and brings Emilys cousins to town to stop the relationship. One day, Emily is seen buying arsenic at the drugstore, and the town thinks that Homer is giving her the shaft, and that she plans to kill herself.   When she buys a bunch of mens items, they think that she and Homer are going to get married. Homer leaves town, then the cousins leave town, and then Homer comes back. He is last seen entering Miss Emilys house. Emily herself rarely leaves the home after that, except for a period of half a dozen years when she gives painting lessons.  Her hair turns gray, she gains weight, and she eventually dies in a downstairs bedroom. The story cycles back to where it began, at her funeral. Tobe, miss Emilys servant, lets in the town women and then leaves by the backdoor forever. After the funeral, and after Emily is buried, the townspeople go upstairs to break into the room that they know has been closed for 40 years.Inside, they find the corpse of Homer Barron, rotting in the bed. On the dust of the pillow next to Homer they find an indentation of a head, and there, in the indentation, a long, gray hair. Study Guide Questions Here are a few questions for study and discussion. What is important about the title of the short story, A Rose for Emily? What are the multiple meanings for the rose?What are the conflicts in A Rose for Emily? What types of conflict (physical, moral, intellectual, or emotional) do you see in this story?How does William Faulkner reveal character in A Rose for Emily?What are some themes in the story? How do they relate to the plot and characters?What are some symbols in A Rose for Emily? How do they relate to the plot and characters?Do you find the characters likable? Would you want to meet the characters?What is significant about the gray hair at the end of the short story?What is the central/primary purpose of the story? Is the purpose important or meaningful?How essential is the setting to the story? Could the story have taken place anywhere else?What is the role of women in the text? What about single/independent women? What about the role of wife and mother?Would you recommend this story to a friend?

Certification and Standardization of Mediators Essay

Certification and Standardization of Mediators - Essay Example While it is true in most states a private individual can set himself or herself up as a private mediator, having the sanction of the State and the judiciary is what sets others apart from a mediocre mediator with no training and creates a realm of professionalism. It stands to reason that any kind of profession should have standardized training and credentials. In many states a person can offer private mediation services without taking a class, passing a test or having a special license or certification. Other States require certification from 20 hours to 40 hours, plus continuing education units, according to the Mediation Training Institute International. A few states require a substantive understanding of the area of law to be mediated and stop short of requiring a juris doctor degree. Several universities now offer master’s level degrees in the new area of mediation and alternative dispute resolution (Notre Dame, Creighton Law, Colorado Tech, Regis and Baker University to name but a few). Hawai’i, according to the Hawai’i State Judiciary (1996), is one of the States with minimal requirements. Professions, such as chiropractors, Certified Public Accountants and lawyers, must all receive rigorous training and pass a State test in order to receive their credentials. It is clear from the assigned reading materials that there is a model code of professional behavior to achieve positive results in mediation. Indeed, the American Bar Association endorses a specific standard (2000). Without a certain level of training and testing there is no way to regulate standards of behavior and practices within the profession of mediation. As a nascent field, the lack of standardization is normal. At one time a lawyer did not attend college of any sort and became a lawyer by simply reading the law under an older lawyer. That model has its

Pluto Telecommunication- Organisational Behaviour (People Management & Assignment

Pluto Telecommunication- Organisational Behaviour (People Management & Organisation - Assignment Example The main concern in this context can be recognised to be shortage of proper coordination amid the leaders of top level management and lack of proper planning that could help the company in conducting proper marketing and selling of its products. Thus, with this concern, this particular report is about analysing the problems confronting Pluto and offering valuable suggestions for the resolution of the problems to the company (Martin, 1994). Problem Identification According to the case study, Pluto is being facing crucial problems over a few preceding years. In this regard, one of the problems can be viewed as poor communication. There does not lay any sort of effective communication between the three functional departments of the company which ultimately hampered the performance of the company at large. The overall performance of Pluto got hampered in terms of losing number of orders and also increasing in the complaints of its products by the customers. The main problem which can be seen in accordance with the case study is the cultural difference which is prevailing in the three different operating segments of Pluto. This can be one of the major reasons which eventually results in making inefficient communication between different groups (Martin, 1994). ... between management and employees, whereas, smaller-scale deficiency in communication can occur between the individuals belonging to different functional or operational departments. It is worth mentioning that failure to communicate effectively is often said to be one of the imperative reasons behind raising conflicts in any organisation. Poor communication can create conflict in a number of ways that are apparently visible in this case study. For instance, in accordance with the case, it is clear that the deficiency in proper communication between various operational departments of Pluto has affected the financial position of the company through generating conflicts with the customers in terms of raising severe complaints and losing new orders (Martin, 1994). Analysis Is This an Issue or Problem That Is Concerned With One or Several Aspects? Pluto Telecommunication has been facing challenges while performing its different operational functions. It can be stated that the main reason b ehind the arising challenges is the expansion of the company. It can clearly be seen that there exist lack of proper coordination between the three various functional departments of Pluto. The particular aspect raised several problems like no formulation of proper marketing strategy, need of forming incentive plans by the sales department and non-availability of brochures depicting features of the new products among others. Thus, on the basis of the above discussion, it can be affirmed that the issue concerning shortage of proper coordination or communication is principally concerned with several significant aspects (Martin, 1994). Theories or Concepts Relating to the case study of Pluto, several theories or concepts can be taken into concern that would help in analysing the organisational

Study of various RISC and CISC processor

Study of various RISC and CISC processor INTRODUCTION: The processor (CPU, for Central Processing Unit) is the computers brain. It allows the processing of numeric data, meaning information entered in binary form, and the execution of instructions stored in memory. The first microprocessor (Intel 4004) was invented in 1971. It was a 4-bit calculation device with a speed of 108 kHz. Since then, microprocessor power has grown exponentially. Operation The processor (called CPU, for Central Processing Unit) is an electronic circuit that operates at the speed of an internal clock thanks to a quartz crystal that, when subjected to an electrical currant, send pulses, called peaks. The clock speed (also called cycle), corresponds to the number of pulses per second, written in Hertz (Hz). Thus, a 200 MHz computer has a clock that sends 200,000,000 pulses per second. With each clock peak, the processor performs an action that corresponds to an instruction or a part there of. A measure called CPI (Cycles Per Instruction) gives a representation of the average number of clock cycles required for a microprocessor to execute an instruction. A microprocessor power can thus be characterized by the number of instructions per second that it is capable of processing. MIPS (millions of instructions per second) is the unit used and corresponds to the processor frequency divided by the CPI. One of the primary goals of computer architects is to design computers that are more cost effective than their predecessors. Cost-effectiveness includes the cost of hardware to manufacture the machine, the cost of programming, and costs incurred related to the architecture in debugging.Both the initial hardware and subsequent programs. If we review the history of computer families we find that the most common architectural change is the trend toward ever more complex machines. Presumably this additional complexity has a positive trade off with regard to the cost effectiveness of newer models. The Microprocessor Revolution:- The engine of the computer revolution is the microprocessor. It has led to new inventions, such as FAX machines and personal computers, as well as adding intelligence to existing devices, such as wristwatches and automobiles. Moreover, its performance has improved by a factor of roughly 10,000 in the 25 years since its birth in 1971. This increase coincided with the introduction of Reduced Instruction Set Computers (RISC). The instruction set is the hardware language in which the software tells the processor what to do. Surprisingly, reducing the size of the instruction set eliminating certain instructions based upon a careful quantitative analysis, and requiring these seldom-used instructions to be emulated in software can lead to higher performance, for several reasons:- REASONS FOR INCREASED COMPLEXITY Speed of Memory vs. Speed of CPU:- .from the 701 to the 709 [Cocke80]. The 701 CPU was about ten times as fast as the core main memory this made any primitives that were implemented as subroutines much slower than primitives that were instructions. 709 more cost-effective than the 701. Since then, many higher-level instructions have been added to machines in an attempt to improve performance. Microcode and LSI Technology:- Microprogrammed control allows the implementation of complex architectures more cost-effectively than hardwired control.Advances in integrated circuit memories made in the late 60s and early 70s have caused microprogrammed control to be the more cost-effective approach in almost every case. Once the decision is made to use microprogrammed control, the cost to expand an instruction set is very small; only a few more words of control store. Examples of such instructions are string editing, integer-to-floating conversion, and mathematical operations such as polynomial evaluation. Code Density:- With early computers, memory was very expensive. It was therefore cost effective to have very compact programs. Attempting to obtain code density by increasing the complexity of the instruction set is often a double-edged the cost of 10% more memory is often far cheaper than the cost of squeezing 10% out of the CPU by architectural innovations. Marketing Strategy:- Unfortunately, the primary goal of a computer company is not to design the most cost-effective computer; the primary goal of a computer company is to make the most money by selling computers. In order to sell computers manufacturers must convince customers that their design is superior to their competitors.In order to keep their jobs, architects must keep selling new and better designs to their internal management. Upward Compatibility:- Coincident with marketing strategy is the perceived need for upward compatibility. Upward compatibility means that the primary way to improve a design is to add new, and usually more complex, features. Seldom are instructions or addressing modes removed from an architecture, resulting in a gradual increase in both the number and complexity of instructions over a series of computers. Support for High Level Languages:- As the use of high level languages becomes increasingly popular, manufacturers have become eager to provide more powerful instructions to support them. Unfortunately there is little evidence to suggest that any of the more complicated instruction sets have actually provided such support.The effort to support high-level languages is laudable, but we feel that often the focus has been on the wrong issues. Use of Multiprogramming:- The rise of timesharing required that computers be able to respond to interrupts with the ability to halt an executing process and restart it at a later time. Memory management and paging additionally required that instructions could be halted before completion and later restarted. RISC(Reduced Instruction Set Computing) The acronym RISC (pronounced risk), for reduced instruction set computing, represents a CPU design strategy emphasizing the insight that simplified instructions that do less may still provide for higher performance if this simplicity can be utilized to make instructions execute very quickly. Many proposals for a precise definition have been attempted, and the term is being slowly replaced by the more descriptive load-store architecture. Being an old idea, some aspects attributed to the first RISC-labeled designs (around 1975) include the observations that the memory restricted compilers of the time were often unable to take advantage of features intended to facilitate coding, and that complex addressing inherently takes many cycles to perform. It was argued that such functions would better be performed by sequences of simpler instructions, if this could yield implementations simple enough to cope with really high frequencies, and small enough to leave room for many registers, factoring out slow memory accesses. Uniform, fixed length an instruction with arithmetics restricted to registers was chosen to ease instruction pipelining in these simple designs, with special load-store instructions accessing memory. The RISC Design Strategies:- The basic RISC principle: A simpler CPU is a faster CPU. The focus of the RISC design is reduction of the number and complexity of instructions in the ISA. A number of the more common strategies include: 1) Fixed instruction length, generally one word. This simplifies instruction fetch. 2) Simplified addressing modes. 3) Fewer and simpler instructions in the instruction set. 4) Only load and store instructions access memory; no add memory to register, add memory to memory, etc. 5) Let the compiler do it. Use a good compiler to break complex high-level language statements into a number of simple assembly language statements. Typical characteristics of RISC:- For any given level of general performance, a RISC chip will typically have far fewer transistors dedicated to the core logic which originally allowed designers to increase the size of the register set and increase internal parallelism. Other features, which are typically found in RISC architectures, are: Uniform instruction format, using a single word with the opcode in the same bit positions in every instruction, demanding less decoding; Identical general purpose registers, allowing any register to be used in any context, simplifying compiler design (although normally there are separate floating point registers); Simple addressing modes. Complex addressing performed via sequences of arithmetic and/or load-store operations. à ¢Ã¢â€š ¬Ã‚ ¢ Fixed length instructions which (a) are easier to decode than variable length instructions, and (b) use fast, inexpensive memory to execute a larger piece of code. à ¢Ã¢â€š ¬Ã‚ ¢ Hardwired controller instructions (as opposed to microcoded instructions). This is where RISC really shines as hardware implementation of instructions is much faster and uses less silicon real estate than a microstore area. à ¢Ã¢â€š ¬Ã‚ ¢ Fused or compound instructions which are heavily optimized for the most commonly used functions. à ¢Ã¢â€š ¬Ã‚ ¢ Pipelined implementations with goal of executing one instruction (or more) per machine cycle. à ¢Ã¢â€š ¬Ã‚ ¢ Large uniform register set à ¢Ã¢â€š ¬Ã‚ ¢ minimal number of addressing modes à ¢Ã¢â€š ¬Ã‚ ¢ no/minimal support for misaligned accesses. RISC Examples:- à ¢Ã¢â€š ¬Ã‚ ¢ Apple iPods (custom ARM7TDMI SoC) à ¢Ã¢â€š ¬Ã‚ ¢ Apple iPhone (Samsung ARM1176JZF) à ¢Ã¢â€š ¬Ã‚ ¢ Palm and PocketPC PDAs and smartphones (Intel XScale family, Samsung SC32442 ARM9) à ¢Ã¢â€š ¬Ã‚ ¢ Nintendo Game Boy Advance (ARM7) à ¢Ã¢â€š ¬Ã‚ ¢ Nintendo DS (ARM7, ARM9) à ¢Ã¢â€š ¬Ã‚ ¢ Sony Network Walkman (Sony in-house ARM based chip) Advantages of RISC * Speed * Simpler hardware * Shorter design cycle * User (programmers benifits) Disadvantages Of RISC q A more sophisticated compiler is required q A sequence of RISC instructions is needed to implement complex instructions. q Require very fast memory systems to feed them instructions. q Performance of a RISC application depend critically on the quality of the code generated by the compiler. CISC(complex instruction set computer) A complex instruction set computer (CISC, pronounced like sisk) is a computer instruction set architecture (ISA) in which each instruction can execute several low-level operations, such as a load from memory, an arithmetic operation, and a memory store, all in a single instruction. Performance:- Some instructions were added that were never intended to be used in assembly language but fit well with compiled high level languages. Compilers were updated to take advantage of these instructions. The benefits of semantically rich instructions with compact encodings can be seen in modern processors as well, particularly in the high performance segment where caches are a central component (as opposed to most embedded systems). This is because these fast, but complex and expensive, memories are inherently limited in size, making compact code beneficial. Of course, the fundamental reason they are needed is that main memories (i.e. dynamic RAM today) remain slow compared to a (high performance) CPU-core. ADVANTAGES OF CISC * A new processor design could incorporate the instruction set of its predecessor as a subset of an ever-growing languageno need to reinvent the wheel, code-wise, with each design cycle. * Fewer instructions were needed to implement a particular computing task, which led to lower memory use for program storage and fewer time-consuming instruction fetches from memory. * Simpler compilers sufficed, as complex CISC instructions could be written that closely resembled the instructions of high-level languages. In effect, CISC made a computers assembly language more like a high-level language to begin with, leaving the compiler less to do. DISADVANTAGES OF CISC * The first advantage listed above could be viewed as a disadvantage. That is, the incorporation of older instruction sets into new generations of processors tended to force growing complexity. * Many specialized CISC instructions were not used frequently enough to justify their existence. The existence of each instruction needed to be justified because each one requires the storage of more microcode at in the central processing unit (the final and lowest layer of code translation), which must be built in at some cost. * Because each CISC command must be translated by the processor into tens or even hundreds of lines of microcode, it tends to run slower than an equivalent series of simpler commands that do not require so much translation. All translation requires time. * Because a CISC machine builds complexity into the processor, where all its various commands must be translated into microcode for actual execution, the design of CISC hardware is more difficult and the CISC design cycle correspondingly long; this means delay in getting to market with a new chip. Comparison of RISC and CISC This table is taken from an IEEE tutorial on RISC architecture. CISC Type Computers RISC Type IBM 370/168 VAX-11/780 Intel 8086 RISC I IBM 801 Developed 1973 1978 1978 1981 1980 Instructions 208 303 133 31 120 Instruction size (bits) 16 48 16 456 8 32 32 32 Addressing Modes 4 22 6 3 3 General Registers 16 16 4 138 32 Control Memory Size 420 Kb 480 Kb Not given 0 0 Cache Size 64 Kb 64 Kb Not given 0 Not given However, nowadays, the difference between RISC and CISC chips is getting smaller and smaller. RISC and CISC architectures are becoming more and more alike. Many of todays RISC chips support just as many instructions as yesterdays CISC chips. The PowerPC 601, for example, supports more instructions than the Pentium. Yet the 601 is considered a RISC chip, while the Pentium is definitely CISC. RISCs are leading in:- * New machine designs * Research funding * Publications * Reported performance * CISCs are leading in: * REVENUE Performance * The CISC approach attempts to minimize the number of instructions per program, sacrificing the number of cycles per instruction. * RISC does the opposite, reducing the cycles per instruction at the cost of the number of instructions per program. * Hybrid solutions: * RISC core CISC interface * Still has specific performance tuning Future Aspects Todays microprocessors are roughly 10,000 times faster than their ancestors. And microprocessor-based computer systems now cost only 1/40th as much as their ancestors, when inflation is considered. The result: an overall cost-performance improvement of roughly 1,000,000, in only 25 years! This extraordinary advance is why computing plays such a large role in todays world. Had the research at universities and industrial laboratories not occurred had the complex interplay between government, industry, and academia not been so successful a comparable advance would still be years away. Microprocessor performance can continue to double every 18 months beyond the turn of the century. This rate can be sustained by continued research innovation. Significant new ideas will be needed in the next decade to continue the pace; such ideas are being developed by research groups today. Conclusion The research that led to the development of RISC architectures represented an important shift in computer science, with emphasis moving from hardware to software. The eventual dominance of RISC technology in high-performance workstations from the mid to late 1980s was a deserved success. In recent years CISC processors have been designed that successfully overcome the limitations of their instruction set architecture that is more elegant and power-efficient, but compilers need to be improved and clock speeds need to increase to match the aggressive design of the latest Intel processors. REFERENCES: Books: 1. Computer system Architecture by M. Morris Mano 2. Processor Archicture by jurij silc, Borut Robic 3. George Radin, The 801 Minicomputer, IBM Journal of Research and Development, Vol.27 No.3, 1983 4. John Cocke and V. Markstein, The evolution of RISC technology at IBM, IBM Journal of Research and Development, Vol.34 No.1, 1990 5. Dileep Bhandarkar, RISC versus CISC: A Tale of Two Chips, Intel Corporation, Santa Clara, California Encyclopedia: 1. Encarta 2. Britanica

Warren Buffett

Warren Buffett There are many ways to describe Warren Buffett such as genius, best investor of all time, down to earth, and full of wisdom. Buffett is the second richest man on the planet and still seems to come off as an average person. He is a native of Omaha, Nebraska and attended the University of Nebraska-Lincoln for his undergraduate degree. Buffett attended Columbia of the Ivy League for his graduate degree. He has been very generous with his wealth, which is estimated to be worth $40 billion. When Warren Buffett was 25 years old, he began a limited partnership with his close family and friends. His original capital was estimated just over $100,000, over the next decade he added partners who brought money with them for him to invest. He did not have a year in which his company did not make money that decade and in return was paid 25% of the profits. Once his partnership dissolved, he began distributing shares of Berkshire Hathaway. Long story short, Buffett has taken Berkshire Hathaway from $7 per hare to $103,000 today and owns over 65 companies. The most recent company Buffett purchased was Burlington Northern for $34 billion, which is the biggest acquisition of his life. By purchasing Burlington Northern, Buffett is betting on the United States economy making a comeback. Moving materials by railroad is much more cost effective than by trucks. Buffett is a man who has many followers and he has given hope to people by making this gamble on America. Warren Buffett plans to give away 85% of his fortune to charities and foundations, most of it going to the Bill and Melinda Gates foundation. He is a truly generous man and cares deeply about the people of America. Buffett will go down in history forever because of his brilliant investing but will be remembered by many around the country for what he gave back to it. References 1. CNN Money. 25 June 2006. Web. 15 Nov. 2009. . 2. About. com. 2009. Web. 25 Nov. 2009. . 3. Los Angeles Times. 4 Nov. 2009. Web. 15 Nov. 2009. .

The Most Neglected Answer for University of Texas Essay Samples

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