The characteristics of customer relationship management in Apple Essay

The characteristics of customer relationship management in Apple Company - Essay Example CRM is regarded as not just the application of technology, but also a strategy to learn more about customers' needs and behaviours in order to develop stronger relationships with them (Yu, 2009). As such, it is more of a business philosophy than a technical solution to assist in dealing with customers effectively and efficiently. Nevertheless, successful CRM relies on the use of technology. In this regard, Shanmugasundaram (2008) has noted that so far as the technological architecture of CRM is concerned, it is broadly categorized into 3 types which are as follows: Operational Analytical Collaborative Also, Bergeron (2002) has been of the opinion that CRM is a technology; and that it is basically a process that helps firms to create â€Å"consistent, repeatable and measurable results†. Thus the overt reliance of CRM on technology is facilitated through the various scholars who have noted the degree to which technology is a facilitator in CRM. Shanmugasundaram (2008) has been o f the opinion that there are various typical features of any good CRM program. CRM is basically linked to the corporate level strategy of the organization and envisages the establishment as well as the maintenance of long lasting relationships among the customers and the firm. However, it is always difficult to implement a successful CRM strategy. Bergeron (2008) has stated that overtly technologically reliant CRM policies may not always turn out to be electronically feasible. The author further notes that various technological problems as well as other issues arise while implementing an otherwise sound CRM policy plan on paper into action. Moreover, among the other major problems that arise is that the firm may not have a high level of technological expertise and the lack of such technological expertise may result in the firm’s outsourcing of the CRM implementation parts. This in turn makes the valuable data of the firm susceptible to the potential threat of the data falling in the hands of outsiders as well. Also, Bergeron (2002) states that technology is an integral part of the overall CRM process. In this regard, again, security and privacy can pose to be issues that may turn out to be hard to sort out during the implementation phase. So far as the ambit of CRM is concerned, it is seen as the automation of horizontally integrated business processes involving front office customer contact points via multiple, interconnected delivery channels (Peelen, 2003). Thus the purview of CRM spreads across various important functions of business like marketing, sales, service as well as support. Given the reach of CRM or for that matter the latest concept of using CRM from a strategic point of view, it becomes very important to ensure that proper care is taken in order to ensure proper planning as well implementation of CRM policies within the organization. In the context of the present study, it is imperative that the firm under consideration has indeed left a n indelible mark in recent times given the practices in retail marketing vis a vis customer relationship management. Thus the study envisages delving deep into the area of customer relationship management in general and that of the Apple company in particular in order to come up with insights as well as findings regarding the

Land Economics and Planning Essay Example | Topics and Well Written Essays - 2000 words

Land Economics and Planning - Essay Example The paper suggests and recommends some proposals to be followed in this scenario.More and more people from the rural areas are beginning to turn up in the urban areas for the better employment opportunity. This is the â€Å"pull† factor, which attracted people from the villages to come to towns and cities. Subsequently, there were also â€Å"push† factors in the form of change in land reforms and the development of capital-intensive techniques of agriculture. This has created an explosion of urban population in the recent years. As the population increased, the need for appropriate infrastructure to support these people became a necessity. It is a known fact that cities have traditionally enjoyed more economic advantages because the facilities for industrialization like transportation, communication etc. is available here. (Balchin, Isaac & Chen,2000, 2000; pp 1-6). The retail park to be set up will house various retail stores and supermarkets under one roof. This will lead to more employment opportunities for the people in the town. Various retail stores will open up in the area providing for more investment from the companies in the development of the town. As it will be set up in the heart of the town, that would mean the availability of communication from all parts of the town. Subsidiary industries will be opened up to support the new activity in the town. In short, the whole economy will get a facelift using land as a resource. On the contrary, the town center is one of the areas, which lies in the pivotal position of the town. It lends to the beautification of the area with greenery and parks. To set up a retail park would mean the destruction of these places, which are treasured by the citizens. The town will be devoid of the greenery. The construction of a retail park would also mean the setting up of various subsidiary industries, which would increase the pollution.  

Using comics to increase writing achievement Essay Example for Free

Using comics to increase writing achievement Essay Abstract This paper will focus on a Classroom Action Research Project performed at an elementary school with a group of seven 5th grade English as a Second Language students. The project involved using cartoon comic strips to both motivate ESL students to write and also to see if a non-traditional approach to teaching writing will increase the student’s writing achievement. Popular newspaper comic strips were used to motivate students and they were required to read it and then answer a set of open-ended questions. Statement of Intent Many students have the ability to be successful writers. The ESL students struggle to write, but when they get motivated they seem to write better. Many ESL students are unmotivated about writing because of language, lack of background knowledge, or the topic is not authentic or interesting. The more the students write the better they will become at it. If ESL students can get motivated to write, they will write more and thus become better writers. Popular newspaper comic strips were used to motivate the 5th grade ESL students to write. Students read popular newspaper comic strips and then answered open-ended questions. Here are the questions that will be answered at the end of this Classroom Action Research Project: 1)Can ESL students get motivated to write? 2)Will a non-traditional approach to writing motivate 5th grade students to write? 3)Could the use of comic strips in writing help increase writing achievement in 5th grade ESL students? Rationale for Research Research into the process of writing has shown it to be a very complicated problem solving process requiring the writer to constantly monitor their progress towards a specific goal. Students that become good writers experience intrinsic as well as extrinsic rewards, but face problems with motivation along the way. Writing requires the individual to pay attention to motivational conditions. The following is a list of the four clusters of conditions that are keys to developing writing motivation: 1)Nurturing functional beliefs about writing. 2)Fostering engagement using authentic writing tasks. 3)Providing a supportive context for writing. 4)Creating a positive emotional environment. The teacher’s views, beliefs, conceptions, and misconceptions are very important in determining the right conditions in most writing contexts. Research is needed to better understand the process of motivation as it relates to writing. Children start writing at an early age by scribbling. The writing process continues from there and proceeds at different paces depending on the child. As writing develops children start forming letters, words and soon sentences. â€Å"They begin to shift away from list-like writing and localized control (e.g., linking to vocabulary used in  the previous sentence, repeating familiar syntactic frames) toward a more goal-directed, strategic approach ( Berninger, Fuller, Whitaker, 1996). Their writing has more topical and the- matic coherence (e.g., Flower et al., 1990), as purpose, planning, and revising play an increasing role. A growing metacognitive capability gives them the potential to shift from a knowledge-telling to a knowledge-transforming approach ( Bereiter Scardamalia, 1987) and to use information about audience, genre, and rhetorical stance to accomplish a variety of writing purposes ( Berninger et al., 1996). â€Å" Highly motivated capable writers that can adapt their writing to changes in audience and topic can only achieve the developmental writing process described above. They can use writing as a means of communication with others. They write the same way they would talk with another people, stress free and with control. In a 1997 National Center for Education Statistics writing assessment shows that 80% of eleventh grade students can write clear and focused responses and less that one third can write clearly enough to show sufficient information to support their claims. 2 % of students can write proficiently enough to show effective responses that have enough information to support details and discussion. Teachers are failing to develop positive beliefs and motivation about writing. Comic strips can be used to motivate and inspire students. For one thing, comics can take away the number one worry that students have about writing today: finding something to write about. Most of the times when you leave it up to the students to write about something, they never know what to write. Every teacher has heard the same thing. â€Å"I don’t know what to write about.† Introducing and discussing comic strips is a great way to motivate and stimulate students about writing. Many students already know the characters from comic strips and this makes the experience less stressful and fun. It also provides the students with kid friendly language and the relationship between the pictures and text makes it perfect for  lower level readers. All these facts put together makes it possible for comic strips to provide the level of motivation and interest that will help students stay focused a bout writing and this will in the long run improve their writing skills. Methodology The study was completed with a group of seven 5th grade ESL students for a period of three months one half hour a week. Starting in the beginning of September and ending at the end of November. This group of ESL students is composed of fluent English speakers that are limited English readers and writers. At the beginning of the study, the students read a short story about ants and then answered an open-ended question. The students were then told to draw a happy, straight,   or sad face depending on their level of frustration and/or stress. This was used as the pretest. At the beginning of the study students were introduced and exposed to newspaper comic strips. They read, discussed, and drew them. Students were exposed to a variety of lessons on the writing process and were required to do one comic strip writing prompt a week. Included in every writing prompt is smiling, straight, or sad face that is drawn by the student in the upper right hand corner of the paper to show their motivation level. A record of the student’s motivational level was kept to measure fluctuation patterns according to the cartoon character used that week. Research Analysis At the beginning of the study the students were told that they would be taking part in a study that would require them to write. Many of them immediately showed signs of stress and much complaining followed. We met once a week for half an hour and they were introduced to a comic strip and  discussions followed. The students then had two days to complete the prompt on their own, including a drawing of a face on the upper right hand corner to show how they felt about it before it was collected. The prompts that were used are from the Comic-Strip Writing Prompts book by Karen Kellaher (2001). During the initial pretest three students drew smiling faces, three drew straight faces and one drew a sad face. Although it seems that the percentage of students that felt good versus the percentage of students that had no emotion at all is the same their reactions during the writing would tell a different story. The students all seemed stressed and bothered with the writing. Most of the students answered the question during the pretest, but all are lacking creativity and emotion to their writing. All the answers came straight from the story. No opinions, personal connections, or point of views were part of anybody’s writing. There were only five students remaining in the group during the last week of the study. One moved and the other one tested out of the ESL program and was no longer available to meet. In the final writing prompt all students drew happy faces. They did seem to be more excited about the writing than in the beginning. This may be due to the social rewards as well as the stress free environment due to the fact that no grades went along with their writing assignments. The following chart shows the before and after motivation and writing results for each student in the group: Motivation BeforeMotivation AfterWriting BeforeWriting After Dayannara V. Below BasicBelow basic Jose V. Below BasicBelow Basic Jeffrey R. ProficientProficient Maria C. BasicBelow Basic Jacqueline A. ProficientBelow Basic * The Chart above shows the beginning and end results of the study. Comprehensive Conclusions and Reflections The study increased the overall motivation of the group, but it did not increase writing achievement and in-fact lowered the writing achievement of two students. The contributing factors associated with the lack of success of this study are as follows: 1)Time frame The group met for half an hour once a week. This was not enough time to effectively influence the writing achievement of these students. Using Comics to Increase 10 2)Reading level – The reading level of these students was not significantly high enough for them to be able to read the comic strip and understand it. Even if they could have understood the comic strip, the prompt questions were too hard to for them to understand. 3)Background knowledge – A student who is asked to write about ice hockey or fishing that has experience it first hand or has been exposed to it will definitely be able to write about it better. Many of the urban kids are asked to write about things that they know absolutely nothing about.  A good example is the time the Reading School District had a district wide writing assessment about snow. The students had to write about a snowy day. Many ESL students had never seen snow. 4)Can’t get the joke – This one is the most important when it comes to comic strips. Most of the students could eventually read what the comic said, but they could not understand the jokes. A good example of this was the comic strip where Garfield says â€Å"Cats have just surpassed dogs as the country’s favorite pets!† Odie the Dog comes hopping by and then Garfield says â€Å"Somehow the victory would have been more satisfying had the competition been stiffer.† The students had no idea what this meant and could not understand it without some explanation. 5) Vocabulary – The students don’t have a sufficient vocabulary to understand comic strips. Although comic strips are written at a lower reading level, some of the vocabulary words that are used are hard for ESL students to understand and some extensive explanations had to be done before they could start writing. Example: â€Å"Had the competition been stiffer.† In closing, the ESL students need a lot of help. They of course need to write as much as possible, but if we work on increasing their reading level and expose them to as many cultural experiences as possible then we can really begin on making them great writers. If the study was to be done again it is suggested that the group meet daily and that there be vocabulary development lessons done to supplement the comic strip writing activities. References Yale University. Retrieved December 11, 2006, from www.yale.edu Web site: http://www.yale.edu/ynhti/curriculum/units/1980/80.04.02.x.xhtml Tom Janz, T (2006). Newspapers in Education Middle School Writing. Litsite Alaska, Retrieved December 11. 2006, from http://litsite.alaska.edu/workbooks/midnewswrite.html North Carolina State Board of Education, (2006). Making the Grade: Writing Through The Grades. ncpublicschools.org, Retrieved 2006, from http://www.ncpublicschools.org/student_promotion/mtg/fall01.html Brunin, R (2000). Developing Motivation to Write . The Questia online library, 35, Retrieved December 11, 2006, from http://www.questia.com/PM.qst?a=ose=gglscd=94798356 Kellaher, K (2001). Comic-Strip Writing-Prompts. New York, N.Y.: Scholastic. Parsons, J (1993). Using Comic Books To Teach.. ERIC, Retrieved December 11, 2006, fromhttp://eric.ed.gov/ERICWebPortal/Home.portal?_nfpb=true_pageLabel=RecordDe tailsERICExtSearch_SearchValue_0=ED363892ERICExtSearch_SearchType_0=eric_accnoobjectId=0900000b8012cb2a Cohn , N (June 2006). Comixpedia. Retrieved December 11, 2006, from www.comixpedia.com Web site: http://www.comixpedia.com/comic_theory_101_seeing_rhymes

Art Deco and fashion

Art Deco and fashion ‘Fashion Signifies a change of time, a cultural turn, and (wo)men’s roles in a society.’ [Choose a period of time in history and use examples to discuss this statement. You can focus on a specific society in your discussion.] The Art Deco Movement and the influence of France on how it effected womens fashion during the early 20th century. Introduction Throughout history the field of fashion has gone through many changes which has been shown in society. This essay will explore the above statement and will be done by focussing in at a particular period of time which is the beginning of the twentieth century, just after the first World War. For this discussion the role of the Art Deco movement and the influence of France will be addressed to see whether fashion does in fact reflect changes in a society. This essay will begin by a brief overview of the Art Deco movement, exploring the influence of the Jazz Age, the impact of France and haute couture as well as World War Ones effect on the employment of women and see whether fashion reflected this new era. But first one needs to start by defining Art Deco. The Art Deco Movement Art Deco can be simply defined as a style ‘characterised by precise and boldly delineated geometric shapes and strong colours†¦Ã¢â‚¬â„¢ OxfordDictionaries.com The Art Deco movement 1909-1939 was a period of time which pushed through new developments in architecture, film, photography as well as fashion and textiles. Its influence permeated throughout society promoting a new aspirational lifestyle. In addition to this, the Art Deco movement coincided with World War One which took place 1914-1918. The combination of the war and the rise of the Art Deco movement continued to prove favourable to the fashion industry as peoples attitudes were more open to change. The Influence of Haute Couture On Women One of the examples of the Art Deco movement effecting attire of women was via fashion illustration and as a result the clothing magazines were gaining in popularity as beautiful publications to look at. Furthermore, entering the twentieth century meant that women felt more empowered to embrace new styles, important in pushing the boundaries further in clothing design. Haute Couture was a style which reflected this — led by France. Haute Couture is an expensive, made to measure, hand made way of making garments. It gained attraction and popularity of upper class women due to the new appeal of the Parisian fashion houses. The Parisian designers transformed the fashion scene away from the nineteenth century by designing easy to move tailored garments. The Art Deco scene and Haute couture inadvertently caused women’s dress to undergo a further radical change. Women were finally able to leave behind the restricting corsets and petticoats, this meant they were able to dress in less time and not need a help of a maid thus becoming more independent. This was because the designers were making garments which where slimmer with narrower silhouettes as well as flatter busts. Fashion designer Paul Poiret is one prominent example of the first Parisian fashion designer who excelled in haute couture by creating slimmer dresses therefore leaving behind the corset. Lussier, author of the book, Art Deco Fashion, talks about a collection Paul Poiret created in the early 1900’s when art deco interior was in demand, Lussier described the collection as a ‘harmonious passage towards the straighter silhouettes’ and then goes on to say it was a ‘revolution to fashion’. At the beginning of the century, as women were becoming more confident and empowered, they began to participate more in sporting activities. This created an additional demand for practical easy to move garments. Parisian designers experimented with functional designs and cuts. In France, as in Europe, horse riding became popular and the races became social events which meant that the upper class customers took this opportunity wear these styles. Furthermore, french haute couture houses sent models to races showcasing their clothes. The combination of the Art Deco movement and haute couture both originating in France influenced the rest of Europe and parts of the world to cement its reputation as the style capital which meant all women felt compelled to copy. World War One As World War one began in 1914 it interrupted fashion and stopped it from being the main focus for women. Although, it is said that the economy at the time effects fashion perhaps the economic hardships of the war helped keep the androgynous style in. The iconic french fashion designer Coco Chanel began designing during the war creating tailored outfits and comfortable styles which linked with the simpler looks of practical work wear making it more acceptable. Her designs were a sign of the times as more women began working, taking over the jobs of men who went to fight. Before the war in France at the start of the 20th century women where already joining the work force however when the war took place ‘female employment grew by 20%’[Online] Available at: http://europeanhistory.about.com/od/womeninworldwar1/a/womenworkww1.htm [Accessed: 26 November 2014] As the Art Deco movement was a period of time which saw the great war, the war was a factor that brought significant changes to fashion when it ended. Women became competitive for jobs when men returned. They wanted to be noticed, therefore, they experimented with their appearance with the use of make up and hair styles. After the war, haute couture continued to rise due to the influence of French Vogue within it the promotion of the Parisian designers such as Coco Chanel, Jean Patou and Elsa Shiaparelli. These Parisian designers showcased casual easy movement sport clothing and ‘Chanel and Patou consistently championed the shorter length’ (Valerie , 19 pg, ). During the 1920’s, cosmetics and their new role in defining beauty, which Vogue encouraged, became all the rage amongst young women. The moon manicure was featured as something really daring and was quickly copied bringing nails to the focus like never before. Nail lacquer, mascara, and lipstick became popular ‘rouged lips, pencilled eyebrows and dangling ear-rings’ (Lanver, 1964, p12) To add to this they cut their hair which was also a dramatic change to women’s appearance, ‘The other thing that shocked elderly people was the zeal of the modern girl for cutting of her hair.’ This description was what consisted of the heavily made up look which was apart of the ‘flapper’ style which is going to be explored further below within the jazz age. The Jazz Age A new exciting music style of jazz which originated from America after the war which was quickly embraced by France and its Art Deco credentials in the twenties up to The Great Depression. This ‘Jazz Age’ added ‘a unique combination of exoticism and modernity, which was at the core of the art deco movement’ (Lussier, 2003, p1). At this time it was uncommon for women to wear short garments however the Jazz Age sparked a new age of young women where they adapted shorter lengths as well the heavily made up look. It marked a time for change for a new way of lifestyle which consisted of nightclubs, dance mania and general promiscuity. Although the Jazz Age stemmed from America it became popular within Europe due to it offering a new exciting way of life especially after the gloom of being in a war. The Jazz Age can be marked as the starting point for women socialising freely, a new trend for women emerged and they became known as the ‘Flappers’. The combination of the Jazz Age and the new styles of clothing coming from Haute Couture linked together to change women’s role in society. The unstructured shorter styles of dresses were perfect to the dancing styles they adopted such as the energetic ‘Charleston’ and the increased time required for socialising. Overall, there was a gene ral female emancipation. They ditched the elaborate up-do hairstyles and cut their hair short in blunt hair cuts. The notoriety of the flappers and their lifestyle transformed the idea of women into something modern that allowed them to be independent and have freedom. It was a dream that eventually trickled down to all woman at the time. Conclusion To conclude, the above statement is correct. It has been shown how fashion goes hand in hand with changes to circumstances in the society it is in. By focussing on one period of time and place — one can see how women’s fashion in the 20th century was affected by the Art Deco movement in the influence of forward thinking designers who took on the long thinner silhouettes reflecting the new interior and exterior trends emerging in France. It also addressed the need for women to move more freely particularly starting with the upper classes and the need for more women wanting to participate sporting activities. It in turn influenced corsetry doing away with the restrictive corsets. The unexpected turn of events of World War One allowed women to break away from the traditional role of a women by having to adopt the simpler and practical lines of the Haute Couture designs of dress which now became more mainstream to them. The Jazz Scene coming over from New York was embraced by France and resulted in the iconic Flappers who wore strong make up colours echoed in palates of Art Deco. Their shorter hairstyles and endorsement of the loose unstructured clothing had a knock one affect and was easily copied by the masses. By considering the above time period and looking over at the fashion at that time one can say that fashion does signify a change in time, women’s role and its culture. Bibliography http://www.slideshare.net/KateSimon/women-in-the-1920s-10247493 http://www.tfo.upm.es/docencia/ArtDeco/ArtDecoGen1.htm http://www.speak-fashion.de/fashion_history/1900to1920/fashion-history-haute-couture-era http://www.fashion-era.com/flapper_fashion_1920s.htm#1914 -18 Changes For Women https://www.princeton.edu/~achaney/tmve/wiki100k/docs/Art_Deco.html http://www.vam.ac.uk/content/articles/f/fashion-drawing-in-the-20th-century/ intro fashion illustration http://www.randomhistory.com/1-50/003clothing.html http://www.haute-world.com/2009/10/vogue-covers-1920-2009-paris-france.html

Design of Manchester Serial Data Communications Channel

Design of Manchester Serial Data Communications Channel The Design of Manchester Serial Data Communications Channel Based on Vivado (Systemverilog) Abstract As the explosive growth of wireless communication system and also with the proliferation of laptop and palmtop computers, the requirement of high quality data communication channel is also growing rapidly. By transforming line voltage frequently and proportioning to the clock rate, the Manchester coding is able to help recover the clock and data. It is now widely used in many domains. This project studies the function of the clock divider, the pseudo random bit sequence generator (PRBSG), the shift register and the finite state machine (FSM), then comprise them together into a Manchester serial data communications channel. It is used for recovering clock signal from the encoded data. The further application is setting up a bit error rate (BER) tester to detect the condition of the whole system. If the bit error rate (BER) is high, which means the whole system is not integrated; if low, the integrality of the system is great. 1.1 Background In modern life, wireless communication develops rapidly in many aspects, especially in the communication industry. So, it has achieved lots of attention from media and public. The development of cellular phones is also swift and violent. During the whole world, the cellular phones have experienced geometric growth over the last decade and the number of cellular phone users will grows up to a billion in the foreseeable future. In fact, by replacing out-dated wireless systems, cellular phones are becoming much more widely used, and they have already played a very important role in business domain, also the indispensable part of everyday life. Besides, wired networks in many businesses and campuses are now replaced or supplemented by local area wireless networks for officers and students to use it more convenient. Numbers of new applications such as wireless sensor networks, smart homes and appliances, automated highways and factories and remote telemedicine, are becoming reality, which is a huge improvement of technology. The conditions such as the explosive growth of wireless systems and the proliferation of laptop and palmtop computers show a bright future of wireless networks, not only in independent systems but also in larger networking infrastructure. However, in order to support the required performance of emerging applications, it is quite challenging to design, analysis and solve any problems that occurs in wireless networks. With the development of wireless communication system, Manchester encoding is widely used. Due to its development at the University of Manchester, it is known as a synchronous clock encoding technique that used by the physical layer for encoding the clock and data of a synchronous bit stream. At the very first beginning, it was used to save data on the magnetic drum of the Manchester Mark one computer. In Manchester code, the binary data that need to be transmitted over the cable will not sent as a sequence of logic 0 and 1, which is also called Non Return to Zero (NRZ). However, if the bits are transformed into different format, then it will have lots of advantages than the straight binary form only like Non Return to Zero (NRZ). However, in digital transmission, noise, interference, distortion or bit synchronization errors are the main factors that affect the number of bit errors. Every time when transmitting data though a data link, there is a possibility of errors being introduced into the system. If errors are introduced into the data, which means the signal will be interfered, and the system would not be integrated. So for this situation, it is necessary to assess the performance of the system, and bit error rate (BER) provides an ideal way to achieve the requirements. The bit error rate (BER) is the number of bit errors that occurs every unit time, and the bit error ratio (BER) is defined as the number of bit errors that occurs divided by the total number of transferred bits during a controllable study time period. It is a unit less performance measure, which is always expressed in percentage form. Bit error rate (BER) assesses the full end to end performance of a system which includes the transmitter, receiver and the medium between the two. Due to this situation, bit error rate (BER) enables to test the actual performance of an operating system. It is different from other forms of assessment and works in a much better way. 1.2 Objectives Figure 1 The Diagram of Physical Components Connection The figure 1 above shows the components used in the system and the connection configuration of the system. First of all, the signal generator outputs data into the T junction chip (signal emitter) which includes the clock divider, prbsgen and the logic xor gate. Secondly, the data will be transmitted through the transmission channel which is made up by two vertical metal bars, one is LED light for transmitting data, the other is light sensor for receiving data. Thirdly, the data will be sent into the signal analysis and recover part which includes the shift register, pattdet and fsm components. Finally, the recovered signal and original data both will be sent into the oscilloscope to check the difference and make sure if the result is satisfied. The objective of this project is setting up a Manchester serial data communications channel based on the vivado operation system which using System Verilog language to match this physical system. It can be used as radio channel, bit error rate tester and etc. In this project, the application of the system is designed as a bit error rate (BER) tester. As shown in figure 2 below is the design of bit error rate tester. During a complete simulation period, once received the number of errors that occurs and total number of bits that sent, then the bit error rate is available. Figure 2 Bit Error Rate Tester Design 1.3 Theory a. Bit Error Rate Bit error rate (BER) is a key parameter that is used for transmitting digital data from one location to another in assessing systems. It is widely used to monitor the state of digital signal in different applications, such as radio data links, fibre optic data systems, Ethernet and those who transmit data through some form of networks. Generally, it affected by noise, interference and phase jitter. Although these systems work in different ways, and have disparate impact on the bit error rate, the basics of bit error rate are still the same. Every time when transmitting data though a data link, there is a possibility of errors being introduced into the system. If errors are introduced into the data, which means the signal will be interfered, and the system would not be integrated. So for this situation, it is necessary to assess the performance of the system, and bit error rate (BER) provides an ideal way to achieve the requirements. Bit error rate (BER) assesses the full end to end performance of a system including the transmitter, receiver and the medium between the two. Because of this, bit error rate (BER) enables to test the actual performance of an operating system. It is different from other forms of assessment and works in a much better way. Bit error rate (BER) is defined as the rate at which errors occur in a transmission system. It can be translated into the number of errors that occur in a string of a stated number of bits directly. The definition of bit error rate in simple formula is: If the medium between the transmitter and receiver is good and the signal to noise ratio (SNR) is high, the bit error rate will become very small, which means the error barely has noticeable effect on the overall system and could be ignored. However, if the number of errors is big, the signal to noise ratio (SNR) is low, and then the bit error rate needs to be considered. In another word, the system has been affected by noise. Noise and the propagation path change (radio signal paths are used) are two main reasons that cause the degradation of data channel and generate the corresponding bit error rate (BER). However the two effects affect in different ways. For example the noise following a Gaussian probability function while the propagation model follow a Rayleigh model. Which means it is very necessary using statistical analysis techniques to undertake the analysis of the channel characteristics. For fibre optic systems, bit errors usually caused by the imperfections in the components such as the optical driver, receiver, fibre and connectors that used for making the link. However it may also be introduced by optical dispersion and attenuation. Whats more, the optical receiver may detects the noise, this will also interfere the system. Typically, the fibre optical system will use sensitive photodiodes and amplifiers to respond to very small changes, and there is a possibility that high noise level will be detected. The phase jitter that present in the system is another possible factor which enable the sampling of the data altered. A number of factors are able to affect the bit error rate (BER). To optimize the system and acquire the required performance levels, it is very necessary to manipulate the controllable variables. Normally, in order to adjust the performance parameters at the initial design concept stages, this should be undertaken in the design stages of a data transmission system. Interference: The interference levels in the system are usually controlled by external factors, and can not be changed by optimizing the system design. However, the bandwidth of the system is a controllable factor. The level of interference will be reduced if the bandwidth is reduced. However the disadvantage is the achievable data throughput will be low when the bandwidth gets reduced. Increase transmitter power: To increase the power per bit, the power level of the system should be increased at the same time. Factors like the interference levels to other users and the impact of increasing the power output on the size of the power amplifier and overall power consumption and battery life, the impact of them should be reduced to help control the bit error rate (BER). Lower order modulation: Lower order modulation schemes are thinkable way to balance the bit error rate. However the achievable data throughput will reduce. Reduce bandwidth: Another adoptable approach is reducing the bandwidth of the system to reduce the bit error rate (BER). As a result, the system will receive lower levels of noise and the signal to noise ratio (SNR) will be improved. However, the achievable data throughput will reduce as well. However it is not possible to achieve all the requirements, sometimes needs to do some trade-offs. In order to achieve the required bit error rate (BER), it is very necessary to balance all the available factors. When the bit error rate (BER) is lower than expected, under the risk of receiving unsatisfied levels of error correction that are introduced into the data being transmitted, further trade-offs are still necessary. Even though it may need higher levels of error correction when sending more redundant data, but the effect of any bit errors can be masked, as a result, the overall bit error rate (BER) will improve. As radio and fibre optic system, in order to detect the indication of the performance of a data link, bit error rate (BER) is an excellent parameter for that. It is also one of the main parameter of interest in data links that detects the number of errors that occurs. Other features of the link such as the power and bandwidth, etc are able to get the performance that required after adjusting with the knowledge of the bit error rate (BER). b. Shift Register The Shift Register is another type of sequential logic circuit that can be used to save or transfer data in the form of binary numbers. It loads data that present on its inputs and then moves or shifts data to its output during every clock cycle. Basically, a shift register is comprised by numbers of single bit D-Type Data Latches, one for each data bit, either a logic 0 or a 1. The connection arrangement type is serial chain, which is able to keep turning every output from data latch become the input of the next latch. In shift register configuration, the data bits are able to work in several ways such as fed in or out from either the left or right direction one by one or all together in parallel at the same time. Usually, the most widely used construction of a single shift register is made up by eight individual data latches to match eight bits (one byte) data, which means the number of individual data latches is decided by the number of bits that need to be stored. While a shift register may comprise numbers of individual data latches, but all of them are driven by one common clock (CLK) signal, which makes those latches working synchronously. Shift registers normally used in computers or calculates for storing or transferring data. The principle of it is converting data from serial to parallel or from parallel to serial format. For example, if saving data inside computer, shift registers can store all the binary numbers before them added together. In order to set or reset the state of shift register, it always contains an additional connection with the required function. There are four different operation modes for shift register to transfer data. Serial-in to Serial out (SISO) either a left or right direction, with the same clock, the data is shifted serially IN and OUT of the register one bit at a time. The figure 3 below shows an example of it which transfer data from left to right. Figure 3 4-bit Serial-in to Serial-out Shift Register Serial-in to Parallel-out (SIPO) one bit at a time, the data is loaded in register serially, and available to output together in parallel way. The figure 4 below shows an example of it but with 4 bits data input and output and the data transferred from left to right. Figure 4 4-bit Serial-in to Parallel-out Shift Register Parallel-in to Parallel-out (PIPO) the parallel data is introduced together into the register at the same time, and then transferred to each correspondent outputs together under the same clock pulse. The figure 5 below shows an example of it with 4 bits parallel data input and output and the direction of data movement is from left to right. Figure 5 4-bit Parallel-in to Parallel-out Shift Register Parallel-in to Serial-out (PISO) the parallel data is introduced together into the register in the meantime, and then one bit at a time, shifted out serially under the control of clock. The figure 6 below shows an example of it with 4 bits data input which transfer data from left to right. Figure 6 4-bit Parallel-in to Serial-out Shift Register c. Pseudo Random Bit Sequence Generator (PRBSGEN) A random bit generator is a device or algorithm that used to output a sequence of independent and unbiased binary digits in statistics. Meanwhile, a pseudo random bit sequence generator (PRBSG) is a deterministic algorithm, which means if a truly random binary sequence of length X is given, the binary sequence output of length Y >> X would be random. The input of the pseudo random bit sequence generator (PRBSG) is normally called the seed, while the output of it is called a pseudo random bit sequence. The pseudo random bit sequence generator (PRBSG) can be used as random because the value of an element of the sequence is not related to the values of any of the other elements. However, the output of a pseudo random bit sequence generator (PRBSG) is not truly random. With all possible binary sequences of length Y, the number of possible output sequences is a small fraction maximally. After N elements, the sequence starts to repeat itself, which means it is deterministic. The aim is to receive a small truly random sequence and then expand it into a sequence with much larger length. Generally, the implementation of pseudo random bit sequence generator (PRBSG) is based on the linear feedback shift register (LFSR). The pseudo random bit sequence generator (PRBSG) makes a sequence of logic 0 and 1 under the same probability. A sequence of serial n*(2^n -1) bits use one data pattern, and this pattern will repeat itself over time. In the Manchester serial data communications channel, the pseudo random bit sequence generator (PRBSG) is implemented in System Verilog programming language, and used to sample two bit input data and managed through a logic xor gate, then introduce the result into the first bit of the sequence as the feedback. The output of the pseudo random bit sequence generator (PRBSG) was taken from all the nine bits of the shift register. The feedback connections of the pseudo random bit sequence generator (PRBSG) are shown in appendix A. As a result, the output of the pseudo random bit sequence generator (PRBSG) cycles between 0 to 511. Figure 7 Principle of Pseudo Random Bit Sequence Generator (PRBSG) d. Manchester Coding The Manchester coding is well known because of the development in the University of Manchester. It is used to save data on the magnetic drum of the Manchester mark one computer. In signal transmission domain, Manchester coding is widely used. However in order to achieve the same data rate but less bandwidth, the more complex codes are created such as 8B/10B encoding. Meanwhile the disadvantages of them are in the transmitter device, not able to have high tolerant of frequency errors and jitter, and receiver reference clocks. The worst problem is the Manchester encoding is not suitable for higher data rate because it will introduce some difficult frequency errors into the system. But the advantage of Manchester coding is helping recover the clock by transforming line voltage frequently, which is proportional to the clock rate directly. It is very convenient to transmit data by media like Ethernet without a DC component because the DC component of encoded signal is not determined by the data that transmitted, which means no information will be transmitted in signal. The figure 8 below shows the principles of Manchester coding, which are: Each bit is transmitted once a period. Logic 0 expresses a low-to-high transition, logic 1 expresses a high-to-low transition. At the midpoint of a period, logic 0 or 1 will be interconverted. The transformation at the beginning of a period does not mean the data. Figure 8 Principle of Manchester Encoding Figure 9 The Circuit Design    The figure 9 above is the complete design of whole circuit. All the components that required comprising a Manchester serial data communications channel are designed successfully. The data will be divided in the clock divider (Divclk) component, sampled in the pseudo random bit sequence generator (Prbsgen) component, and then altered into Manchester signal by a logic xor gate, through the transmission channel, the data will be sent into the shift register, combine into 10 bits DATA signal, after analysed in the Pattdet component, 4 states will be sent into finite state machine (FSM) component and be recovered as the signal of RBC and RNRZ. In this system the clock frequency is 100MHZ and the reset will set at logic 1 before the system work. The programs of all components used in the system are shown below. Figure 10 Clock Divider Program The figure 10 above is the click divider program. This component is designed for dividing the clock signal into two different clock signal div_out and div_out2. These two output signals are shown in figure 13. In which the signal div_out gets one clock of high pulse every 10 clocks, the frequency is 10MHZ, and works as the specific input o the Prbsgen component. While signal div_out2 gets 5 clocks of high pluses per 5 clocks, also the frequency is 10MHZ. Figure 11 Prbsgen Program The figure 11 above is the Prbsgen program. It works as a pseudo-random bit sequence generator, which records 10 bits of data each clock, when signal div_out gets high impulse, sampling the 4th and 8th data into a logic xor gate and then put the result into the 1st data position as the feedback of the sampling function. Finally, output the prbs signal (as shown in figure 7) or NRZ signal (in figure 13). Figure 12 Logic Xor Gate Program The figure 12 above is the logic xor gate program. In order to combine the NRZ and Bit_clk signal together and output the signal T (Manchester code) which is shown in figure 13 below. When NRZ gets high and Bit_clk gets low, output Manchester is high; when NRZ gets high and Bit_clk gets high, Manchester is low; when NRZ gets low and Bit_clk gets high, Manchester is high; when NRZ gets low and Bit_clk gets low, Manchester is low. Figure 13 Manchester Signal As the figure 13 shown, the clock divider, the pseudo random bit sequence generator (PRBSG), and logic xor gate all work well, the output signal div_out and div_out2 are both divided as required, while the prbs signal (NRZ) is as expected and the T signal (Manchester code) is the same as the signal that xors with div_out2 and prbs (NRZ) signal. Figure 14 Transmission Delay Program The figure 14 above is the transmission delay program. It is used to simulate the data transmission delay during the real life. Normally, errors like noise, interference and phase jitter are introduced into the data through this part, while the time of transmission delay depends on the distance between the signal emitter and receiver. In this system, the parameter of time delay set at 1.5e-6 in seconds. Figure 15 Shift Register Program The figure 15 above is the signal register program. The function of it is compressing and storing the Manchester data and then transfer into pattdet component. It starts working only when reset is logic 0, input en is logic 1. Figure 16 DATA Signal The output of 10 bits data (DATA) is the same as required, which means the program of shift register works well. Figure 17 Pattdet Program The figure 17 above is the pattdet program. It is used for analysing the DATA signal, and the output follows the principle which shown in table 1 below. Data 00000 00000 00000 11111 11111 00000 11111 11111 State S1 10h3EQ S2 10h01F S3 10h3FF S4 10h000 Table 1 The Working Principle of Pattdet Component Figure 18 4 States From figure 18 above, 4 states of s1, s2, s3, s4 are outputted separately and successfully. Figure 19 Finite State Machine (FSM) Program The figure 19 above is the finite state machine (FSM) program. The function of it is analysing the 4 states and recovering the bit_clk, bit_EN and NRZ signal, and the principle of it is shown in below figure 20. From the figure 20, when signal NRZ turns to logic 0 from logic 0, state s1 turns to s2; when signal NRZ turns to logic 1 from logic 0, state s1 turns to s4; when signal NRZ turns to logic 1 from logic 1, state s2 turns to s1; when signal NRZ turns to logic 0 from logic 1, state s2 turns to s3. Figure 20 The Principle Of FSM Figure 21 The Bit Error Rate Tester (BERT) Program The figure 21 above is the catalogue program of bit error rate tester. It contains the clock divider, prbsgen, encoder (logic xor gate), shift register, pattdet and fsm program file. Figure 22 The Test Bench Program The figure 22 above is the test bench program. It defines all the factors in the system and especially the period of reset and clock. Figure 23 The Implemented Design This is the implemented design figure, which shows the service condition of devices. Figure 24 The Schematic Design Figure 25 The Detailed Figure of FSM The figure 25 above is the schematic design which shows the real used state of every component. However, the part of clock divider and pseudo random bit sequence generator (PRBSG) is not satisfied one. The problem may be caused by the vivado operation system software issue or the definition of clock divider and pseudo random bit sequence generator (PRBSG) is not recognised by the software. The Manchester serial data communications channel built up successfully. In figure 26, the signal RBC, RNRZ and RBE are all recovered, just the same as the original signal bit_clk, NRZ and bit_en but with some time delay. The next objective is developing applications for the Manchester serial data communications channel. The chosen target is a bit error rate tester. By setting up a noise component for introducing random noise into the Manchester signal and then an error counter inside the finite state machine (FSM) for counting the number of errors that occurs and the total number of bits sent. As a result, the bit error rate (BER) will be able to count in the system. Figure 26 Recovered RNRZ and RBC Signal The figure 26 above is the final simulation result. Signal of recovered non return to zero (RNRZ), recovered bit_clock (RBC) and recovered bit_en (RBE) are all the same as their original data but with time delays. Figure 27 The Signal of Input and Recovered From the figure 27 above, the recovered signal is almost the same as the original input data. These two figures prove the design of Manchester serial data communications channel is successful. After setting up this communication channel, the next step is developing applications for further requirements. The theory of pseudo random bit sequence generator (PRBSG), Manchester coding, shift register and bit error rate are proved to be feasible. This project is a great opportunity to practise from research ideas to concrete systems. With the explosive growth of wireless communication system, Ciletti, M. (2011). Advanced digital design with the Verilog HDL. 1st ed. Boston: Prentice Hall. (Accessed: October 9 2016). Menezes, A., Van Oorschot, P. and Vanstone, S. (1997). Handbook of applied cryptography. 1st ed. Boca Raton: CRC Press, p.chapter. Available at: http://cacr.uwaterloo.ca/hac/about/chap5.pdf (Accessed: December 25 2016). MUKHERJEE, S. and PANDEY, R. (2007). DESIGN AND IMPLEMENTATION OF PRBS GENERATOR USING VHDL. bachelor. Department of Electronics Communication Engineering National Institute of Technology Rourkela. Available at: https://pdfs.semanticscholar.org/42e7/490ec8905ea8afe618c6882f2b050ece2ae4.pdf (Accessed: October 14 2016). Malviya, S. and Kumari, P. (2014). Implementation of Pseudo-Noise Sequence Generator on FPGA Using Verilog. [online] Dept of Electronics and Communication, Sobhasaria Group of Institution, Sikar, Rajasthan. Available at: https://www.ripublication.com/irph/ijeee_spl/ijeeev7n8_16.pdf [Accessed

BARNEY FRANK: Truth, Lies, Privacy :: essays Papers

BARNEY FRANK: Truth, Lies, Privacy Throughout his eighteen-year tenure in the United States House of Representatives, Representative Barney Frank has received all types of criticism and praise, ranging from derogatory statements pertaining to his sexual preferences, to outstanding compliments similar to the ones received by the great orators in the history of our country. Many of these comments surfaced during the recent impeachment trial for President Clinton, where Representative Frank dazzled and enraged many of his political colleagues with his unique "laser-sharp wit and quips" (Alvarez, 1998). Throughout his political career and most recently, the impeachment trial, Representative Frank freely voiced his opinion of the President and his actions with an almost invincible aura emanating with each comment. It is true that Representative Frank emerged as one of Clinton’s strongest defenders, but Representative Frank did not assume the typical role of a completely loyal and faithful supporter. Representative Frank made exhilarating arguments in defense of the President, and he publicly denounced the President’s actions just as quickly when he did not agree with them. By supporting the President in such a fashion, it is hard to imagine why Representative Frank was not constantly under attack, but rather still able to clearly state his opinions to an audience that was still very eager to listen. Of course like any other politician, Representative Frank has his allies and his enemies, yet he does not seem to weigh them as heavily as other politicians appear to. Enemies or simply people who do not necessarily see eye to eye with Representative Frank, have branded Frank as: "very intimidating, harassing, with an ability to use humor that enables him to win debate on tactics alone, rather than substance,"says Jones."His style reminds me of a petulant adolescent who has to have his own way. He's a stand-up comedian in congressional clothes, a very funny guy in the Don Rickles/Jackie Mason mold"(Elvin, 1998). Another one of Frank’s rivals, Howard Phillips of Conservative Caucus, who began debating with Frank in their undergraduate days at Harvard, stated that Representative Frank is: "a person of great energy, and great passion, for the wrong causes. God gave him extraordinary talent and he's using it for evil rather than for good. Barney is a very capable fellow with a very distorted view of what's right and what's wrong"(Elvin, 1998). Along with the negative criticism directed at Representative Frank comes a great number of positive, uplifting compliments such as the following by Representative Henry Hyde: BARNEY FRANK: Truth, Lies, Privacy :: essays Papers BARNEY FRANK: Truth, Lies, Privacy Throughout his eighteen-year tenure in the United States House of Representatives, Representative Barney Frank has received all types of criticism and praise, ranging from derogatory statements pertaining to his sexual preferences, to outstanding compliments similar to the ones received by the great orators in the history of our country. Many of these comments surfaced during the recent impeachment trial for President Clinton, where Representative Frank dazzled and enraged many of his political colleagues with his unique "laser-sharp wit and quips" (Alvarez, 1998). Throughout his political career and most recently, the impeachment trial, Representative Frank freely voiced his opinion of the President and his actions with an almost invincible aura emanating with each comment. It is true that Representative Frank emerged as one of Clinton’s strongest defenders, but Representative Frank did not assume the typical role of a completely loyal and faithful supporter. Representative Frank made exhilarating arguments in defense of the President, and he publicly denounced the President’s actions just as quickly when he did not agree with them. By supporting the President in such a fashion, it is hard to imagine why Representative Frank was not constantly under attack, but rather still able to clearly state his opinions to an audience that was still very eager to listen. Of course like any other politician, Representative Frank has his allies and his enemies, yet he does not seem to weigh them as heavily as other politicians appear to. Enemies or simply people who do not necessarily see eye to eye with Representative Frank, have branded Frank as: "very intimidating, harassing, with an ability to use humor that enables him to win debate on tactics alone, rather than substance,"says Jones."His style reminds me of a petulant adolescent who has to have his own way. He's a stand-up comedian in congressional clothes, a very funny guy in the Don Rickles/Jackie Mason mold"(Elvin, 1998). Another one of Frank’s rivals, Howard Phillips of Conservative Caucus, who began debating with Frank in their undergraduate days at Harvard, stated that Representative Frank is: "a person of great energy, and great passion, for the wrong causes. God gave him extraordinary talent and he's using it for evil rather than for good. Barney is a very capable fellow with a very distorted view of what's right and what's wrong"(Elvin, 1998). Along with the negative criticism directed at Representative Frank comes a great number of positive, uplifting compliments such as the following by Representative Henry Hyde:

Essay --

A History of Computers by: Paul Little The idea of a machine that would make man’s calculations easier, faster, and more accurate is no new notion. The Abacus, Napier’s rods, the Calculating Clock, and the Stepped Reckoner are a few examples of early computer ideas In the more recent history of the computer, we can see how computers have morphed changed from clunky, million-dollar machines into the compact and convenient devices which can held on the tip of ones finger. John von Neumann’s name is most well-known among the potential â€Å"founders† of the first computer (and also known for work in quantum mechanics) but who the credit belongs to can be debated. Von Neumann wrote a memorandum explaining the Electronic Numerical Integrator and Calculator (ENIAC) but the ENIAC was developed by J. Preper Eckert and John Mauchly of the Moore School of the University of Pennsylvania in the mid-1940s. The credit for this invention is shady because Mauchly reportedly visited John Atanasoff before building the ENIAC. Atanasoff built the Atanasoff/Berry Computer in the early 1940s at Iowa State University. But, von Neumann’s name is the most well-known and thus settles the issue! The model von Neumann came up with for the basic computer structure is still today, with modifications for speed and size, his computer is still the foundation for many computers. Part of the the reason his work was seen in high standards was hs reports on his work. The Academic Press Dictionary states that â€Å"von Neumann’s report was so we... ...Whether you agree or not, the NSA’s new 1.7 billion facility being built to store internet users data and phone call and is the largest facility ever built to do so, can be viewed as a new treat to people personal data and piracy. Believed â€Å"once finished† ith the ability to hold not only the most but some of if not the biggest super computers in the world. It is said the facility once up and running will be able to store data at the rate of 20 terabytes per minute, many times over. The ability to do so is in its self amazing and the other technology that will be used there I am sure will be just as mind boggling. But most are more concerned with the negative potential (and rightfully so) over the technical scale of the project, but ever the less this will probably be the start of the next (out of many past and future) computer generation.