Display screen Essay Example for Free

Display screen Essay A monitor can be considered as a window into the computers memory. It allows data entry to be checked by echoing input characters on the screen. The disadvantage of monitors is that data on the screen is temporary (called softcopy) and they can hold only limited amount of data. Quality Factor Resolution Resolution defines sharpness and clarity of an image and is specified as the number of dots per character. Modern packages are using a lot of graphics and therefore require high-resolution monitors. Display Adaptors Adaptors are cards installed in motherboard to control a monitor. The following specifications were evolving over the years:   Hercules mono   Colour Graphics Adaptor (CGA) low quality   Enhanced Graphics Adaptor (EGA) medium quality   Video Graphics Array (VGA and Super VGA) high quality   Extended Graphics Array (XGA) successor of SVGA, has the power to handle the video and animation requirements of the modern multimedia packages and games Bit Mapping Technique For monochrome displays, only one bit of memory is required for each pixel. If it is set to 1, the pixel is illuminated. If the corresponding memory location contains 0, the pixel is left dark. A binary representation in RAM The equivalent screen representation Figure 1. Bitmapped representation of letter T coding in RAM and corresponding image on screen For colour monitors, more than one bit is required to keep information about a pixel because apart from illuminated or not setting, colour specification is also required. Monitors that are capable of displaying 16 colours only would require 4 bits of memory per pixel (16 = 24). Figure out how many bits of memory per pixel are required to give a choice of 512 colours? Thus the required size of visual memory depends on the number of pixels on the screen (resolution factor) and on the number of colours available. If you are buying a modern monitor which is bigger than 14, it is desirable to have at least 2 M of memory on the video card. Types of Monitors 1). Cathode Ray Tube (CRT) Technology: A beam of electrons lights up pixels/dots on the screen Colour is achieved by combining Red/Green/Blue (RGB) of different intensities. Size: Size is measured diagonally (corner to corner). Today monitors are available in sizes 14, 15, 17, 21. But the monitor size doesnt tell anything about the maximum viewable image size. The bezel in front of every monitors CRT diminishes the viewable area by approximately an inch. When deciding on which monitor to buy, think of which resolution youll be working in most frequently. The higher the resolution, the bigger the monitor is required. Monitors usually display 25 lines 80 characters each in text mode. Standard Resolutions (in pixels) VGA 640 x 480 SVGA 800 x 600 XGA 1024 x 768 1280 x 1024 1600 x 1200 Some high-end monitors support these high resolutions. Designed for professional level work,1600 x 1280 e. g. computer-aided design or desktop publishing 1800 x 1440 Supported by at least one: ViewSonic P815 Mega An interlaced monitor draws its screen in two passes. First it draws every second line and then fills in the missing lines. Interlacing is noticeable because of flicking screen and can cause headaches. A non-interlaced monitor draws its screen in one pass. Another reason for a flicking screen is the frequency with which the monitor redraws its screen called refresh rate or vertical scan rate. The bottom line should be 75Hz so that flickering effect doesnt show up. Ensure that your monitor and graphics card can be synchronised to the same refresh rate. 2). LCD (Liquid Crystal Display) These displays are known as being used in calculators and watches. They have an advantage of being cheap but a disadvantage is that it is very hard to see what they display in the dark. They are used in laptops because they are flat. LCDs come as monochrome or colour. Monochrome LCD images usually appear as dark gray images on a grayish-white background. Color Liquid Crystal Displays use two basic techniques for producing color: passive matrix and active matrix. Passive matrix is the less expensive of the two technologies. It offers good contrast and viewing angle suitable for graphical user interfaces but its colors are not particularly sharp and it has slow reaction times. This is the most popular display used in notebook computers today. It consists of a grid of horizontal and vertical wires. At the intersection of each grid is an LCD element which constitutes a single pixel, either letting light through or blocking it. Active-matrix technology, also called thin film transistor (TFT), produces color images that are as sharp as traditional CRT displays at 1/8 the space, but the technology is expensive. For multimedia applications with video images the fast response time of TFT active matrix displays is ideal. For color active matrix provides individual color bits for each displays. An active-matrix display uses from one to four transistors to control each pixel. LCDs do not exaggerate actual viewing areas like regular monitors. For example, a 9. 4 LCD provides 9. 4 diagonal viewing area. This is the equivalent of an 11 CRT. Color LCD Comparison Chart Technology Contrast Ratio Response Viewing Angle Price Passive Matrix 20:1 300 ms Medium Medium Active Matrix 60:1 80 ms High High 3). Gas Plasma Gas-plasma display is a type of flat display screen, called a flat-panel display, used in some portable computers. Images on gas-plasma displays generally appear as orange objects on a black background. Although gas-plasma displays produce very sharp monochrome images, they require much more power than the more common LCD displays. Technology: A grid of conductors are sealed between two flat plates of glass; neon and/or argon gas fills the space between the plates. Comparison Of LCDs and Gas-Plasma Displays: Type Readability Battery Life Cost LCD Lowest Longest Lowest Gas plasma High Shortest.

Free Essays on A Dolls House: Breaking Away :: A Dolls House Essays

Breaking Away in A Doll's House The central theme of A Doll's House is secession from society. It is demonstrated by several of its characters breaking away from the social standards of their time and acting on their own terms. No one character demonstrates this better than Nora. During the time in which the play took place society frowned upon women asserting themselves. Women were supposed to play a role in which they supported their husbands, took care of their children, and made sure everything was perfect around the house. Work, politics, and decisions were left to the males. Nora's first secession from society was when she broke the law and decided to borrow money to pay for her husbands treatment. By doing this, she not only broke the law but she stepped away from the role society had placed on her of being totally dependent on her husband. She proved herself not to be helpless like Torvald implied: "you poor helpless little creature!" Nora's second secession from society was shown by her decision to leave Torvald and her children. Society demanded that she take a place under her husband. This is shown in the way Torvald spoke down to her saying things like: "worries that you couldn't possibly help me with," and "Nora, Nora, just like a woman." She is almost considered to be property of his: "Mayn't I look at my dearest treasure? At all the beauty that belongs to no one but me -that's all my very own?" By walking out she takes a position equal to her husband and brakes society's expectations. Nora also brakes society's expectations of staying in a marriage since divorce was frowned upon during that era. Her decision was a secession from all expectations put on a woman and a wife by society. Nora secessions are very deliberate and thought out. She knows what society expects of her and continues to do what she feels is right despite them. Her secessions are used by Ibsen to show faults of society. In the first secession Ibsen illustrates that despite Nora doing the right thing it is deemed wrong and not allowed by society because she is a woman. While the forgery can be considered wrong, Ibsen is critical of the fact that Nora is forced to forge. Ibsen is also critical of society's expectations of a marriage. He illustrates this by showing how Nora is forced to play a role than be herself and the eventual deterioration of the marriage.

Chabros International Group: A World of Wood

The Chabros International Group started with fairly low-key beginnings in the late sixties, but has gradually become a respected name in a wealth of different timber markets. In particular, it has become a well-known wood and veneer supplier due to the relentless and often pioneering efforts of its president Antoine Chami, who has carefully built up a reputation for high quality products and exceptional service. The company employs more than 600 staff with an annual turnover of $100 million USD.Chabros is a leading producer and supplier of wood and veneer and a distributor of a wide range of interior and exterior products that have been specified and used in major high-end projects throughout the Middle East for over 40 years. With an aim to cater to the innovative needs of woodworking professionals, architects & interior designers as well as contractors, Chabros has established overseas production units and distribution points throughout the Middle East Region, targeting businesses that are in search for quality products and exceptional service.In addition to its strong presence of Lebanon, Chabros has always been devoted to expand its range of products to provide original and fresh design solutions to its customers. Chabros has also added a line of services to its current product offerings including veneer stitching & pressing, sanding, veneer finger jointing, parquet and exterior decking installation as well as teak yacht decking. Chabros is positioned as one of the market leading suppliers of Wood & Veneer with a large stock of wide range of products, exceptional service and unique expertise.The company’s success is driven by its loyal customers, their team and their unrelenting focus on delivering results by executing with excellence. In Lebanon, Chabros was one of the first to produce veneer products instead of solid wood because of its ecological and economical benefits. The company’s vision has always been to expand the business further in order to meet the industry’s demands and replenish the shortages that exist. However, due to the wars and political unrest in Lebanon, the company’s desire to expand was stifled somewhat until 1998 when it ventured into the GCC and could establish a branch in Dubai.In the midst of a growing global market, Chabros has established overseas production units and distribution points throughout the Middle East Region, targeting businesses that are in search for quality products and exceptional service. The company’s regional distribution centers are headquartered in Dubai covering a vast geographical area of supply. The Chabros International Group case studies how Chabros confronts a drastic drop in its largest subsidiary's sales after 2008's global economic crisis.Chami, the company’s owner and president, was reviewing his company's 2009 end-of-year financial statements and, in particular, a 30 per cent drop in sales in Dubai. In 2007, a year before the globa l economic crisis, Chami had invested more than $11 million to acquire and expand a sawmill in Serbia to meet Chabros's growing lumber sales demand. With a much higher capacity to produce lumber and a much lower probability to sell it, Chami had to decide what to do to overcome this challenge. Shocked, Chami went into crisis mode and consulted all of his top management to address these issues.Questions that were raised: Should he close parts of his Serbian sawmill? Should he try to boost his company's sales to use all of his sawmill's available capacity? If so, should Chabros try to increase sales within the United Arab Emirates, Saudi Arabia, Qatar, Oman, and Egypt or should it expand into a new country such as Algeria, Bahrain, Iran, Iraq, Jordan, Kuwait, Libya, Syria, Tunisia? Would Morocco, among other countries, be the best country to expand into? Was it the right time to embark on such an expansion?The management also had explored different alternatives such as closing parts o f the Serbian sawmill and different strategies that they could follow if they decided to try grow the company’s sales. The future seemed so uncertain and the team did not know what to expect. It was clear that closing the Serbian sawmill was out of the question, mainly because the company had invested over $11 just less than two years ago. Closing that plant would put the company in a difficult financial situation as it invested for the long run.The company’s best alternative would be to continue operations in the Serbian sawmill and try to expand into other markets where such materials were in high demand. Prior to this, expansion, an extensive research would have to be conducted, particularly due to the crisis affecting many parts of the world. If Chabros was able to find an expanding market, they could continue operations in all of their sawmills. Another option would be to sell off either part of the operations or the entire sawmill.Both of these options would put them at a loss, however, it would be a better option than shutting the entire mill. Some of the strengths and competitive advantages, which Chabros International Group consisted of, were being simultaneously a manufacturer and a wholesaler, which gave them strategic flexibility. They understood and adapted to its Western suppliers and the Middle East and North Africa suppliers. Lebanese people are very adaptable due to their culture, which brought the main sawmill to a much greater advantage.Another strength which Chabros had, was providing its customers with more varied and customized wood products than most other competitors, which built distinctive relationships with its key suppliers. With strengths and advantages come disadvantages, which Chabros had as well. Being a lumber manufacturer put Chabros in the reverse situation and sometimes gave it a disadvantage compared to lumber wholesalers. This happened during the financial crisis, where euro reached an all time high of $1.55 and Chabro’s Russian supplier was able to sell at a lower price. A weak point where Chabros stands, is not working on their brand name. Although Chabros was operating in seven MENA countries, their name was not very well known, not to mention in its parent country, Lebanon. Through its affiliates all over the world, the company has established strategic alliances with mills in Africa, North and South America and Europe, which are responsible for sourcing, cooking, cutting, drying, grading and supplying the various wood products.In recent years, it has broadened its product lines to include new products such as mother-of-pearl laminates and Duroxill UF powder glue. The growth of the company means it has also extended its services, which have developed to include the production of lay-ons, veneered boards and parquetry designs through the use of various splicing, cutting and laser machines in its different locations. Chabros International Group: A World of Wood The Chabros International Group started with fairly low-key beginnings in the late sixties, but has gradually become a respected name in a wealth of different timber markets. In particular, it has become a well-known wood and veneer supplier due to the relentless and often pioneering efforts of its president Antoine Chami, who has carefully built up a reputation for high quality products and exceptional service. The company employs more than 600 staff with an annual turnover of $100 million USD.Chabros is a leading producer and supplier of wood and veneer and a distributor of a wide range of interior and exterior products that have been specified and used in major high-end projects throughout the Middle East for over 40 years. With an aim to cater to the innovative needs of woodworking professionals, architects & interior designers as well as contractors, Chabros has established overseas production units and distribution points throughout the Middle East Region, targeting businesses that are in search for quality products and exceptional service.In addition to its strong presence of Lebanon, Chabros has always been devoted to expand its range of products to provide original and fresh design solutions to its customers. Chabros has also added a line of services to its current product offerings including veneer stitching & pressing, sanding, veneer finger jointing, parquet and exterior decking installation as well as teak yacht decking. Chabros is positioned as one of the market leading suppliers of Wood & Veneer with a large stock of wide range of products, exceptional service and unique expertise.The company’s success is driven by its loyal customers, their team and their unrelenting focus on delivering results by executing with excellence. In Lebanon, Chabros was one of the first to produce veneer products instead of solid wood because of its ecological and economical benefits. The company’s vision has always been to expand the business further in order to meet the industry’s demands and replenish the shortages that exist. However, due to the wars and political unrest in Lebanon, the company’s desire to expand was stifled somewhat until 1998 when it ventured into the GCC and could establish a branch in Dubai.In the midst of a growing global market, Chabros has established overseas production units and distribution points throughout the Middle East Region, targeting businesses that are in search for quality products and exceptional service. The company’s regional distribution centers are headquartered in Dubai covering a vast geographical area of supply. The Chabros International Group case studies how Chabros confronts a drastic drop in its largest subsidiary's sales after 2008's global economic crisis.Chami, the company’s owner and president, was reviewing his company's 2009 end-of-year financial statements and, in particular, a 30 per cent drop in sales in Dubai. In 2007, a year before the globa l economic crisis, Chami had invested more than $11 million to acquire and expand a sawmill in Serbia to meet Chabros's growing lumber sales demand. With a much higher capacity to produce lumber and a much lower probability to sell it, Chami had to decide what to do to overcome this challenge. Shocked, Chami went into crisis mode and consulted all of his top management to address these issues.Questions that were raised: Should he close parts of his Serbian sawmill? Should he try to boost his company's sales to use all of his sawmill's available capacity? If so, should Chabros try to increase sales within the United Arab Emirates, Saudi Arabia, Qatar, Oman, and Egypt or should it expand into a new country such as Algeria, Bahrain, Iran, Iraq, Jordan, Kuwait, Libya, Syria, Tunisia? Would Morocco, among other countries, be the best country to expand into? Was it the right time to embark on such an expansion?The management also had explored different alternatives such as closing parts o f the Serbian sawmill and different strategies that they could follow if they decided to try grow the company’s sales. The future seemed so uncertain and the team did not know what to expect. It was clear that closing the Serbian sawmill was out of the question, mainly because the company had invested over $11 just less than two years ago. Closing that plant would put the company in a difficult financial situation as it invested for the long run.The company’s best alternative would be to continue operations in the Serbian sawmill and try to expand into other markets where such materials were in high demand. Prior to this, expansion, an extensive research would have to be conducted, particularly due to the crisis affecting many parts of the world. If Chabros was able to find an expanding market, they could continue operations in all of their sawmills. Another option would be to sell off either part of the operations or the entire sawmill.Both of these options would put them at a loss, however, it would be a better option than shutting the entire mill. Some of the strengths and competitive advantages, which Chabros International Group consisted of, were being simultaneously a manufacturer and a wholesaler, which gave them strategic flexibility. They understood and adapted to its Western suppliers and the Middle East and North Africa suppliers. Lebanese people are very adaptable due to their culture, which brought the main sawmill to a much greater advantage.Another strength which Chabros had, was providing its customers with more varied and customized wood products than most other competitors, which built distinctive relationships with its key suppliers. With strengths and advantages come disadvantages, which Chabros had as well. Being a lumber manufacturer put Chabros in the reverse situation and sometimes gave it a disadvantage compared to lumber wholesalers.This happened during the financial crisis, where euro reached an all time high of $1.55 a nd Chabro’s Russian supplier was able to sell at a lower price. A weak point where Chabros stands, is not working on their brand name. Although Chabros was operating in seven MENA countries, their name was not very well known, not to mention in its parent country, Lebanon. Through its affiliates all over the world, the company has established strategic alliances with mills in Africa, North and South America and Europe, which are responsible for sourcing, cooking, cutting, drying, grading and supplying the various wood products.In recent years, it has broadened its product lines to include new products such as mother-of-pearl laminates and Duroxill UF powder glue. The growth of the company means it has also extended its services, which have developed to include the production of lay-ons, veneered boards and parquetry designs through the use of various splicing, cutting and laser machines in its different locations.

Devices Used In Letter From Birmingham Jail - Free Essay Example

Sample details Pages: 2 Words: 690 Downloads: 3 Date added: 2019/05/28 Category History Essay Level High school Tags: Letter From Birmingham Jail Essay Did you like this example? Rhetorical Devices used in Letter from Birmingham Jail In the Letter from Birmingham Jail that was written by Martin Luther King Jr. He is defending himself against eight clergymen accusations to which he explains the reasons for the civil rights demonstration and tries to justify the need for nonviolent protest in the Civil Rights Movement. He supports in his letter the idea that there everywhere is injustice. Don’t waste time! Our writers will create an original "Devices Used In Letter From Birmingham Jail" essay for you Create order He uses repetition, analogy, allusion, and rhetoric appeals. The use of words, and feeling of emotions builds trust to get his message across. By describing how the Negros are treated badly and tortured he applies these devices to his letter. King uses pathos by stating, Injustice anywhere is a threat to justice everywhere. We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly. Saying this causes the readers to think about how injustice is a threat because of how it affects everyone even without them knowing. He uses pathos another time by saying that, We know through painful experience that freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed. His statement is saying that you cant wait for freedom to be given to you, you need to go and take it and that is the whole meaning behind the civil rights movement. The way he uses pathos in his letter is showing how King really feels about the movement and how much they need to rebel. King incorporates repetition by saying, But when you have seen vicious mobs lynch your mothers and fathers at will and drown your sisters and brothers at whim; when you have seen hate filled policemen curse kick and even kill your black brothers and sisters; when you see the vast majority of your twenty million Negro brothers smothering in an airtight cage of poverty in the midst of an affluent society and goes on for the whole paragraph with each sentence starting with when you. By using this technique, he is building an emotional case about how the Negrors cant wait no long for justice. The many example he makes of the idea of waiting terrible. He is also making the readers feel bad for how bad they were treating the Negrors by saying all these things that these white men did to the Negrors. He is trying to tell everyone that they have names, jobs, and lives like everybody else. King uses analogy by stating, Just as the prophets of the eight century B.C. left their villages and carried their thus saith the Lord far beyond the boundaries of their home towns Kingrs uses of analogy helps the reader understand what King is doing in Alabama. Like the prophets went around Jerusalem and spread the gospel of Jesus, King is going around Alabama with the civil rights movement to help people understand that segregation laws are bad and they need to get rid of them. By using analogy King is appealing to the reader by making them think that the civil rights movement is just as important as the prophets were to Jesus. King uses allusion by saying, A just law is a manmade code that squares with the moral law, or the law of God. This line is an allusion because it refers to the Bible. He is saying that a just law should be like the ten commandments that God made which is otherwise known as the law of God. This allows the reader to understand how unjust laws should be correct to just laws like the law of God. This also gives some point to why King thinks they should change the unjust laws. Concluding, MLKrs letter to the clergymen made his points clear. His use of literacy and rhetorical devices helped him get his point across. His letter had a major impact on the Civil Rights Movement. Without all the emotion King put in his letter, the letter wouldnt have been the same. It would have stopped the movement and made people think if King was the right man to lead the movement.