Processor Comparison Essays - Instruction Set Architectures

Processor Comparison 1. Investigate the instruction set and architectural features of a modern RISC processor such as the Digital Equipment Corporation Alpha or Motorola/IBM PowerPC. In what ways does it differ from the architecture of the Intel Pentium processor family? The main difference between the architectures of Digital Equipment Corporation's (DEC) Alpha and Intel's Pentium processors are the instruction sets. In this paper I intend on defining both RISC and CISC processors. In doing this I will be comparing DEC's Alpha 21164 (a microprocessor that implements the Alpha architecture) and also Intel's Pentium processors (from the Pentium-R through the Pentium II). Reduced Instruction Set Computing or RISC processing is a CPU architecture with an instruction set that eliminates some (but not all) complex instructions by pairing down and reducing them in complexity so that instructions can be performed in a single processor cycle. This is accomplished through high-level compilers that breakdown the more complex, less frequently used instructions into simpler instructions. Thus, allowing the RISC architecture to im-plement a smaller instruction set that utilizes more registers and eliminating the need for microcode. The Alpha architecture is a 64-bit load and store RISC architecture designed with particular emphasis on speed, multiple instruction issue, multiple processors, and software migration from many operating systems. (1, pg. 1-1) Most recent CPU designs are superscalar and superpipelined. Superscalar means that the architecture provides two pipelines for executing multiple instructions in parallel. Superpipelining increases the number of pipeline stages, allowing for results from either pipeline to be simultaneously used to avoid stalls thus, improving data flow by removing data dependency. The 21164 microprocessor is a superscalar pipelined processor manufactured using 0.5-micron CMOS (Complementary Metal Oxide Semi-conductor) technology. (1, pg.1-3) The Alpha 21164 can issue four instructions in a single clock cycle. This combined with the low-latency and/or high-throughput features in the instruction issue unit and the on-chip components of the memory subsystem reduce the average cycl es per instruction. All data manipulation is done between registers. The registers are 64 bits in length and all instructions are 32 bits in length. Memory operations are either load or store operations. Since many early computers had extremely limited memory and processing power, complex instruction sets were developed. Complex instruction computing or CISC processing is a CPU architecture in which a large number of instructions are hardcoded into the chip. Intel's Pentium processors still adhere to this philosophy. The Pentium processor was Intel's first CPU to employ superscalar architecture. With its 3.3 million transistors it is able to execute two instructions per clock cycle resulting in twice the integer performance relative of an Intel 486 CPU running at the same frequency. Pentium also employed on-chip dual-processing support as well as an onboard interrupt controller. Next came the Pentium Pro, which introduced dynamic execution technology that pre-dicts the program flow through multiple branches. Multiple branch prediction lets the CPU pre-fetch possible next instructions rather than waiting for the outcome. This technology can actually change the order of executed instructions based on analyzed data dependencies, which in turn provides optimum execution speed. However, the Pentium Pro was only available in speeds from 150MHz to 200MHz and has only 16KB of internal cache (half as much as the MMX). In 1997 Intel introduced the Pentium MMX processor. The MMX processor added1.2 million more transistors (4.5 million total) and also SIMD technology (Single Instruction, Multiple Data). SIMD technology included 57 new instructions, 4 new data types and eight 64-bit registers. As in the original Pentium, the MMX Pentium provides both a fixed-point integer data path that allows up to two operations to be executed simultaneously, and a floating point data path that allows one operation to be performed at a time. In addition, the MMX Pentium provides a new MMX data path that allows up to two MMX operations to execute simultaneously, or up to one MMX operation and one integer operation (in the integer data path) to execute simultaneously. The inte-ger data path includes two ALUs and supports operations on 8-, 16-, and 32-bit integers. (4) The MMX processor is available in speeds from 166MHz to 333MHz. Finally the Pentium II processor combines the best features of both the Pentium Pro and Pentium MMX on one chip. Including a 64-bit dual

Nature and Biblical Reference in Annie Dillard Essay Example

Nature and Biblical Reference in Annie Dillard Essay Example Nature and Biblical Reference in Annie Dillard Paper Nature and Biblical Reference in Annie Dillard Paper The Writing by Annie Dullard Is very intriguing, she shows with no guidance from another source how people must see for themselves, so they can truly observe nature in its fullest. She often questions the very foundation of human existence. Annie Dullard also focuses on the creation and evolution and frequently questions God and his impact on the nature and human being. Cod appears a lot In her writing and Annie Dullard often shows her ambivalence toward God. I would like to focus on the relationship between God, human being and nature ND also try to explain the figure of God as Annie Dullard sees it and find a biblical reference In her writing which would be an example of Cods almightiness. Also, there is a conflict between Annie Dullards illusion of God, since her thoughts are not united in this topic and reader could get easily confused, whether she is devout or skeptical about God. In the next paragraph I would like to focus on Dullards use of the words God and god. Annie Dullard often uses the word God or god In her writing, but God does not seem to be very positive figure. Even though Annie Dullard is a religious person and he attends church, she does not blindly celebrate God. She does not understand why there Is all the suffering, when God is the all-powerful creator of the world. The answer she finds Is, that pain and suffering are something similar to a megaphone trough which God sends his emotion to ordinary people. Sometimes reader may get confused by Annie Dullards use of the words God and god. God with capital G always refers to Jewish and Christian religion. God Is always the God of the Bible and she also speaks of the God of Genesis who makes the guarantee that there will be night and day and seasons of the ye « (Dullard 90). But Annie Dullard refuses to believe that God can do everything. In her Seeing, she points out that God cannot prevent people from going blind, and as she sadly observes we do need reminding, not of what God can do, but of what he cannot do'(Dullard 61 Annie Dullard always refers to God, when written with capital G, as to him. She always mentions his cruelty and doubts the possibility of God being a female figure, because she would not allow such sorrow. God written with lower case g Is not any less Important figure. Annie Dullard refers to god or gods when she talks about natural gods or ancient Greek gods, also the very day miracles, such as a tree in the wind or bird caught by her cat. When it comes to the difference between God and god, it seems like the important difference Is In godliness. When godliness becomes overwhelming Dullard always uses term God. Unlike god or gods, God participates In the natural processes and Is a figure which could be blamed for the suffering. Next paragraph could be a description of the conflict between natural world and how ordinary person sees it and thinks of it. Annie Dullard is often compared to romantic authors of the nineteenth century. She seems to be broken apart when It comes to thoughts of the Big Bang theory and the perception of Darwinian evolution and the wo rld creation by God. Her scientific knowledge could be one of the reasons for her ambivalence toward God. As an I OFF example AT cruelty In ten world seen uses animals, winos Demeanor Is very incomprehensible to people. One of her examples is mating mantises, where the phenomenon of sexual cannibalism is very common. When mating the female mantis starts feeding herself with biting off the males head. The mating does not end and surprisingly it actually becomes even more vigorous. Annie Dullard is very interested in many kinds of zoological and botanical events and some parts of her work are related only to stories of eating. The law of nature is not the survival of the strongest individuals. Dullard thinks that it is more likely the matter of accident, luck or simply being in the right place at the right time. Annie Dullard is convinced that evolution loves death more than it loves you or me (Dullard 171). These natural events seem to be cruel only to us, human beings. At this point Annie Dullard goes back to God and suggests that he created people and gave them the specific qualities such as humanity, morals and care for reason. Her quote It is ironic that the one thing that all religions recognize as separating us from our creator our very self- consciousness is also the one thing that divides us from our fellow creatures. It was a bitter birthday present from evolution cutting us off at both ends shows how she feels the difference between human beings and animals. Many people do not really see this feature of nature, but Annie Dullard is a very good observer, who does not just watch it, but also sees it. She believes that God created natural world cruel and amoral. The disjunction between natural beauty and natural hate caused the suffering and to see this diversity one must experience it himself. Dullard advices these people who would like to experience it themselves to always keep their eyes open. According to Annie Dullard there are two kinds of seeing. One involves rolling stones away and studying the bank and the other one also involves a letting go. This kind of seeing is more likely to be a moment of intense insight and, as she says, it is guaranteed that this moment will vanish. These moments are usually created by God and the spiritual part of human being. This paragraph should explain how God appears in Annie Dullards writing in person and how he really affects what is going on around us. In Annie Dullards work Stalking there is a reference to Bible, where God talks to Moses: Moses said to God: I beseech thee, show me thy glory. And god said: Thou cannot see my face: for there shall no man see me, and live. But he added: There is a place by me, and thou shall stand upon a rock and it shall come to pass, while my glory passed by, that I will put thee in a cliff of the rock, and will cover thee, with my hand while I pass by: And I will take away mine hand, and thou shall see my back parts; but my face shall not be seen. Dullard 207) From this extract it seems as if God was omnipresent, as if he was always taking control over everything and it is only up to people how they would react and explain natural features to themselves. There are no doubts that God plays a very important role in Annie Dullards work and that she might be a little uncertain herself, if she really is ambivalent toward God. In fact, in her real life she was very unsure of her own religious views, since she was raised Presbyterian but converted to Catholicism in her early twenties. Annie Dullard claims that it really does not matter what kind of qualities your God has. But reading through her works, it is uneasy to decide, how she really feels toward him. Gods absence and Gods presence are felt simultaneously and it is very difficult to define whether she is afraid of him or she is simply aware of him. One of the poss. 0111 less AT want seen malign Is Tanat seen Is angry Witt ml, even tong she has never really expressed such an attitude in her writing. It is believed that God is an all knowing being, but no one has ever been in direct contact with him. And of course there is the question many people ask every single day: What exactly does he ant us to do, so we do not have to go through any suffering and pain? God and his powers are the reasons for human fear and when we think again about the cruel nature we really have to admit that world is not a warm and loving place. To conclude, Annie Dullard says that every kind of writing is a sort of creation. It is true about any kind of creation and every single one is meant to bring Joy. Every creation is meant to be touching and giving. Annie Dullard says that she writes to make people happy, she tries to make them see as she sees and see what she sees. God in her eyes is a mystic figure and his creation is the only one where she has doubts, whether it brought happiness and Joy. But God touching human being in any kind of sense always brings hope. He is an inscrutable figure. It is most probable to her that there is a God, but the answer to a question if he cares about his creation is probably not. Humans attitude towards God is very difficult. As Annie Dullard says it is extraordinarily difficult to be able to believe. Hope is a lot easier. One of the most famous quotes by Annie Dullard is accurate to her feelings toward God and his impact on a reader. Annie Dullard said: Eskimo: If I did not know about God and sin, would I go to hell?

The Lure Essay Example | Topics and Well Written Essays - 1000 words

The Lure - Essay Example Nowadays, casual coital relationships and pre-marital sex are widely accepted. In fact, it is a subject discussed not only among married couples but among friends, male and female alike. It is an adventure, if not a necessity that must happen for a person to find the perfect match. With this perception growing to be widely accepted, being physically attractive is not the only matter that is given attention. Since coital relationships require intimacy, fragrance should be equally important and this is the message of Gucci Guilty in its advertisement. The advertisement of the perfume, Gucci Guilty displays a nude couple and is in a physical intimate relationship. It is directed to women in particular who desire to draw and satisfy the perfect partner. With the model being beautiful and sexy, it metaphorically implies that such attributes are not enough to have a man totally captivated in her arms. The sense of smell must also be satisfied. A woman should be fragrant as well to be sexua lly appealing to the opposite sex and Gucci Guilty is the perfect perfume for such moments. The man is shown to be closing his eyes, his nose under the chin of the woman, his lips open, almost ready to kiss but not touching the neck of his lover. The neck is one of the parts of the body where perfume is applied. This suggests that the man is hooked in that area, stopping to just enjoy the smell of the woman’s perfume. The neck is also a part that is usually kissed because of where it is situated. Intimate kissing usually starts from the lips, down through the neck and, to the more intimate parts of the body. Moreover, it is one of the parts of the body that arouses sexual appetite when touched tenderly and lovingly. The man actually appears to have been mesmerized by the neck of the woman so that he was magnetized by something. That something is the scent of the woman’s perfume. This statement is not just an assumption but is proven true by what is shown in the picture . As mentioned earlier, the man is not kissing the neck of the woman, although his lips are parted, almost ready to kiss her. However, instead of him being portrayed as a very passionate lover who is ready for action, he is shown to have been magnetized, unable to resist the neck of the woman. With his face just very close to the woman without touching her neck, the photo implies that the man had to stop and sate himself with the smell of the woman. This specific reason for the man just stopping to smell the woman may not really be clearly stated in the photo but with the bottle of Gucci Guilty beside the woman, it says it all. Looking at the woman, one might wonder in relation to the statements made above, that she is not as interested about her lover as the man is of her. The man’s looks do not present any question about his physical attractiveness rather appears extremely desirable. Still the woman is not as concentrated on him as he is about her. This is because the perfu me is worn by the woman that is why it is only the man who is captivated by her. The woman’s lips are slightly curved to a smile which shows satisfaction. She appears to be happy about how her lover is so attracted to her but her smile has something else beside the satisfaction that she feels. Looking at the woman’s eyes, one can tell that there is a knowing in her. That she knows why her lover is so a

Critical Assessment and comparison of the Competitive and Essay

Critical Assessment and comparison of the Competitive and Profitabbility of UK food retail Sector and the UK Oil and Gas Sector - Essay Example Even due to the economic downturn, it is still predicted to increase by 15% over the next five years in the future (SAS, 2011). It is still considered to be an impressive figure despite the fact that it represents a slow growth. Over 9% of GDP of UK is generated by the retail industry which is the success factor of retail companies overseas. With the increase of e-commerce, the products are able to reach through millions of consumers. Hypermarkets have become competitive in offering diversified products to their wide customer base. The major players in the market, Tesco, Asda, J Sainsbury and Wm Morrison accounts for 80% of the total market share (Lloyds Bank, 2012). London is considered to be a strong market for consumer shopping and many people including tourists are inclined towards purchasing in London. It beats out other developed cities including New York, Tokyo and Paris with total spending of ?64.2 Billion (GAIN, 2010). The recessionary periods have hit the retail sector of U K which is very disastrous for the sector, but from a wider perspective, the major players in the market have not undergone major changes which might reveal that the market is running smoothly for the longer term. This also means that the big players did not change their strategies for competition and did not find a need to undergo major changes. The UK retail sector provides biggest revenues to their companies which in turn increases the GDP growth of the nation. The presence of major players indicates that the sector is strong with major assumption of future growth (GAIN, 2010). Weaknesses: The UK retail market is a mature market which is not intended to grow in volume terms. The margins and earnings from the retail sector are threadbare and mostly the earnings are coming from the online stores. As the economy suffers from recession global downturn, it has been tough going for the UK retail market. According to Verdict research, 2012 growth rate of the UK retail sector would be 1. 2% which is the third lowest growth in the history of UK retail in 49 years (SAS, 2011). It has been forecasted that the non-food items in the retail sector would decline for consecutive fourth year as it would have a decrease of -0.5% (SAS 2011). Food is an essential item in our lives, but since the recession period it has allowed people to spend more but for the same quantity. The greatest weakness is the rising food prices over the world which is affecting sales of the major companies and is resulting in slower growth. The grocery section has been badly hit by the downturn which has decreased the consumers spending and now the industry is termed to be as ‘recession-resilient’. The major price drop has resulted in the industry which has hauled Tesco to provide promotional strategies which is the biggest player in UK retail. Asda did not carry out the move to lower its price and insisted that it was the cheapest provider of consumer goods. The rivalry is intense in the sector and has accounted for low profit margins and growth (GAIN, 2010). Opportunities: Even though the margins are threadbare in UK retail sector, the big four of the retail sector, Tesco, J Sainsbury, Asda and Wm Morrison are planning to buy 4 million of retail space which is equivalent to 130 average supermarket stores (SAS, 2011). This proves that the big players consider a growth in the sector in the future which provides an opportunity to grab market shares. According to the UK economy

Christian-Only Hiring Policy Essay Example for Free

Christian-Only Hiring Policy Essay Case Study: Matthew is planning to open a manufacturing facility. He is considering a â€Å"Christian-only† hiring policy whereby he would determine to hire only professing, evangelical Christians to work in the facility. He asks you for your advice on the following questions: 1. Would such a policy be legal? If so, under what terms and what might the restrictions be? 2. From a Great Commission perspective, would this policy be advisable? 3. How would your answers change, if at all, if they planned to open a Christian school rather than a manufacturing facility? Matthew is planning to open a manufacturing facility and is considering a â€Å"Christian-only† hiring policy. The only way that this policy would be legal is if the manufacturing facility was considered to be a non-profit organization. A non-profit organization is an organization that uses surplus revenues to achieve its goals rather than distributing them as profit or dividends. The extent to which a non-profit organization can generate surplus revenues may be constrained or use of surplus revenues may be restricted. If this manufacturing facility was deemed to be a non-profit organization, then the organization would be exempt from the Civil Rights Act and would be able to implement their â€Å"Christian-only† hiring policy without facing charges down the road of discrimination. Due to the fact that a manufacturing facility would be unable to be classified as a non-profit organization because their purpose is usually to distribute its products for profit, then my advice would be that this policy would not be advisable for Matthew to use a â€Å"Christian-only† hiring policy. Using this policy would cause people to be discriminated against due to religious preference, and this is clearly illegal in the United States. If Matthew was planning to open a Christian school rather than a manufacturing facility, my answer would still be that it is illegal to discriminate in a for-profit organization. There are times when a faith-based humanitarian organization has prevailed over the lawsuits brought against them for discrimination due to religious preference, however, I do not advise toying with the gray area of the laws. I would advise Matthew that if he intends to open his manufacturing facility, it is not legal and not advisable to implement his â€Å"Christian-only† hiring policy.

Hosting a Successful Barbecue (Actually a Beer-B-Q) :: Free Expository Process Essays

How to Host a Successful Beer-B-Q Beer-B-Q's are great fun. They're like a mix between a full-blown keg party and a quiet barbecue. Beer-B-Q's are more relaxed than a keg party, with great food, but they're more fun than a simple barbecue. And throwing a great Beer-B-Q is much easier than you may think. First, a good location is a must. A secluded backyard is preferred, especially if it's big and has a deck and a pool or spa. However, a public park that has grills, and where alcohol is allowed, can work as well, but keep the noise level down to avoid any law enforcement attention. Second, you need good weather, so plan your Beer-B-Q for sometime between late May and early September for the best weather in this area. Memorial Day to Labor Day is always a good bet for the perfect Beer-B-Q season. Now that you've picked a date and have your location, the real preparation begins. Okay, first major step is food. Make sure to account for any vegetarians in your group of friends. Boca Burgers or GardenBurgers are good choices for vegan and vegetarian party guests, as both products are made with no animal products. Now, for the real carnivores you're sure to invite, keep your patties at or above a quarter pound size. Even more important than that, however, is the fat content of your patties. Get 98% Fat Free or better patties. Why? We don't care about watching waistlines! However, most of the fat in a patty gets burned off on the grill, shrinking the overall size of the patty. So a 98% Fat Free quarter-pound patty is going to be bigger than a regular quarter-pound patty. I hope that makes sense. Hot dogs are also always a good bet, and Oscar Mayer and Ballpark are perennial favorite brands. Be sure to have plenty of condiments, chips, salad or fruit, and soda for the underage or designated driver guests. Next up is music. Get a stereo. If you're lucky enough to be throwing the Beer-B-Q at a house with those neat outdoor speakers hooked up to the indoor stereo, you're probably set. Otherwise, get your hands on a 3-Disc or 5-Disc portable CD player with speakers that detach from the main unit. You won't have enough outdoor electrical outlets for a component system, so leave the big boy at home. As for music itself, keep it mixed up.

Negative Effects of Marijuana Use

When someone says the phrase â€Å"pot head†, what do people think of? Does the stereotypical street bum, pickpocket, or druggie come to mind, or is it possible that this type of person could be the normal neighbor next door? Marijuana use is looked down upon by society in general but more and more people are taking advantage of it. Marijuana has favorable effects for its users when it comes to physical feeling and experience, but it can also put our families and those that we expose it to in uncomfortable and often dangerous situations. The scientific term for marijuana is â€Å"Cannabis Sativa†, but is also referred to as weed, Mary Jane, grass, hash, and countless other street names. Marijuana can be smoked or eaten, the former often in the form of a joint, blunt, or bowl. Marijuana use in the United States has been on a slow increase since its extreme popularity in the 1960’s and 70’s. Marijuana is illegal in the United States, but this obstacle hasn’t been able to stop teenagers from gaining access to it. It is estimated that at least 49 percent of high school seniors experiment with marijuana at least once prior to graduating high school and that 22 percent of high school seniors smoke marijuana at least once a month. The effects of marijuana can influence all aspects of life, from the users’ educational and extra-curricular environment to their home and family life. Most doctors and physicians believe that marijuana use affects a person’s ability to retain information and learn in general. In a quote from John P. Walters, â€Å"Marijuana directly affects the brain†¦.It impairs the ability of young people to concentrate and retain information during their peak learning years.† THC (tetrahydrocannabinol), which is the main property in marijuana, attaches to nerve receptors in the hippocampal area of the brain. This attachment distorts functions necessary for long-term memory and also weakens short-term memory. The effects that long-term marijuana use has on the brain and its processes can seriously endanger a students learning and educational environment. It can make memorization more difficult, studying harder, and concentrating and focusing an arduous task. The health risks that marijuana use poses to the individual are somewhat intimidating. First, the risk of heart attack for the smoker more than quadruples during the first hour of use. The effects of weed on the lungs are similar, if not more harmful, to the effects of tobacco. Burning and itching of the throat and esophagus are common, along with excessive coughing, increased heart beat, and an increased pulse. Marijuana use while pregnant with a child can cause lung/respiratory infections in the mother and slow the motor functions of the unborn child. Anxiety and panic attacks are also common results of long-term use. When faced with the side effects of using marijuana, the question is â€Å"Why do people continue smoking?† Some experts say that marijuana is addictive, but others are adamant that marijuana doesn’t contain addictive properties that are in things such as cigarettes and alcohol. Me as this being an experience in my life, I don’t agree to marijuana being addictive but for most it is a longterm drug mainly used to fit it or look cool , but that wasn’t my case and in the long anybody who does that drug will regret it. So my advice , pass it !