Love Yourself Essays - Rhyme, Poetry, Literature, Poetics

Love Yourself God made everyone different , equal , and beautiful in their own ways at the same time. Music and poetry are both forms of expression in which the writer gets their point across. Poetic Devices are very important, they contribute to the theme, and relatability in music. To begin with, theme is the subject of a talk, a piece of writing, a pers on's thoughts, or an exhibition a topic. The theme to this song is, it doesn't matter what people think of you , just know that your beautiful. The way this contributes to the theme is that the author is trying to show that beauty goes way deeper than just skin deep and that you shouldn't care what other people think of you. For example, "You should know you' re beautiful just the way are ." Furthermore, the rhyme is correspondence of sound between words or the endings of words, especially when these are used at the ends of lines of poetry. There's types Literary Analysis to rhyme, like for example there's slant rhyme that's when the final sounds are similar but not identical. Exact rhyme is in which two or more words have the identical vowel and final consonant sounds. Internal rhyme is in which words within a single line of poetry rhyme with each other. For example, Alessia Cara uses these types of rhymes is her songs like for example "limits, image, sculpted, sculptor, find blind." And there for having this types of rhymes in her song, it makes the song more entertaining to listen to. Another Poetic Device is Hyperbole which is an exaggeration. For example she says, " Covergirls eat nothing." In conclusion, Poetic Devices are highly important in a song like for example theme, rhyme scheme, Hyperboles, without these devices the song will be unreliable to the listener and not fun to listen to all around.

Raphael Semmes in the Civil War

Raphael Semmes in the Civil War Raphael Semmes - Early Life Career: Born in Charles County, MD on September 27, 1809, Raphael Semmes was the fourth child of Richard and Catherine Middleton Semmes. Orphaned at an early age, he moved to Georgetown, DC to live with his uncle and later attended Charlotte Hall Military Academy. Completing his education, Semmes elected to pursue a naval career. With the assistance of another uncle, Benedict Semmes, he obtained a midshipmans warrant in the US Navy in 1826. Going to sea, Semmes learned his new trade and succeeded in passing his exams in 1832. Assigned to Norfolk, he cared for the US Navys chronometers and spent his spare time studying law. Admitted to the Maryland bar in 1834, Semmes returned to sea the following year aboard the frigate USS Constellation (38 guns). While aboard, he received a promotion to lieutenant in 1837. Assigned to the Pensacola Navy Yard in 1841, he elected to transfer his residency to Alabama. Raphael Semmes - Prewar Years: While in Florida, Semmes received his first command, the sidewheel gunboat USS Poinsett (2). Largely employed in survey work, he next took command of the brig USS Somers (10). In command when the Mexican-American War began in 1846, Semmes commenced blockade duty in the Gulf of Mexico. On December 8, Somers became caught in a severe squall and began to founder. Forced to abandon ship, Semmes and the crew went over the side. Though he was rescued, thirty-two of the crew drowned and seven were captured by the Mexicans. A subsequent court of inquiry found no fault with Semmes behavior and praised his actions during the brigs final moments. Sent ashore the following year, he took part in Major General Winfield Scotts campaign against Mexico City and served on the staff of Major General William J. Worth. With the end of the conflict, Semmes moved to Mobile, AL to await further orders. Resuming the practice of law, he wrote Service Afloat and Ashore During the Mexican War about his time in Mexico. Promoted to commander in 1855, Semmes received an assignment to the Lighthouse Board in Washington, DC. He remained in this post as sectional tensions began to rise and states started to leave the Union after the election of 1860. Feeling that his loyalties were with the newly-formed Confederacy, he resigned his commission in the US Navy on February 15, 1861. Traveling to Montgomery, AL, Semmes offered his services to President Jefferson Davis. Accepting, Davis sent him north on a mission to covertly buy arms. Returning to Montgomery in early April, Semmes was commissioned as a commander in the Confederate Navy and made head of the Lighthouse Board. Raphael Semmes - CSS Sumter: Disappointed with this assignment, Semmes lobbied Secretary of the Navy Stephen Mallory to allow him to convert a merchant vessel into a commerce raider. Granting this request, Mallory ordered him to New Orleans to overhaul the steamer Habana. Working through the early days of the Civil War, Semmes changed the steamer into the raider CSS Sumter (5). Completing the work, he moved down the Mississippi River and successfully breached the Union blockade on June 30. Outrunning the steam sloop USS Brooklyn (21), Sumter reached open water and began hunting Union merchant vessels. Operating off Cuba, Semmes captured eight ships before shifting south to Brazil. Sailing in southern waters into the fall, Sumter took four additional Union vessels before returning north to coal at Martinique. Departing the Caribbean in November, Semmes captured six more ships as Sumter crossed the Atlantic Ocean. Arriving at Cadiz, Spain on January 4, 1862, Sumter badly required a major overhaul. Prohibited from doing the needed work in Cadiz, Semmes moved down the coast to Gibraltar. While there, Sumter was blockaded by three Union warships including the steam sloop USS (7). Unable to move forward with repairs or escape the Union vessels, Semmes received orders on April 7 to lay up his ship and return to the Confederacy. Taking passage to the Bahamas, he reached Nassau later that spring where he learned of his promotion to captain and his assignment to command a new cruiser then under construction in Britain. Raphael Semmes - CSS Alabama: Operating in England, Confederate agent James Bulloch was tasked with establishing contacts and finding vessels for the Confederate Navy. Forced to operate through a front company to avoid issues with British neutrality, he was able to contract for the construction of a screw sloop at the yard of John Laird Sons Company in Birkenhead. Laid down in 1862, the new hull was designated #290 and launched on July 29, 1862. On August 8, Semmes joined Bulloch and the two men oversaw the construction of the new vessel. Initially known as Enrica, it was rigged as a three-masted barque and possessed a direct-acting, horizontal condensing steam engine which powered a retractable propeller. As Enrica completed fitting out, Bulloch hired a civilian crew to sail the new vessel to Terceira in the Azores. Sailing aboard the chartered steamer Bahama, Semmes and Bulloch rendezvoused with Enrica and the supply ship Agrippina. Over the next several days, Semmes oversaw Enricas conversion into a commerce raider. With the work complete, the he commissioned the ship CSS Alabama (8) on August 24. Electing to operate around the Azores, Semmes scored Alabamas first prize on September 5 when it captured the whaler Ocumlgee. Over the next two weeks, the raider destroyed a total of ten Union merchant ships, mostly whalers, and inflicted around $230,000 in damage. Moving toward the East Coast, Alabama made thirteen captures as the fall progressed. Though Semmes desired to raid New York harbor, a lack of coal forced him to steam for Martinique and a meeting with Agrippina. Re-coaling, he sailed for Texas with the hope of frustrating Union operations off Galveston. Nearing the port on January 11, 1863, Alabama was spotted by the Union blockade force. Turning to flee like a blockade runner, Semmes succeeded in luring USS Hatteras (5) away from its consorts before striking. In a brief battle, Alabama forced the Union warship to surrender. Landing and paroling the Union prisoners, Semmes turned south and made for Brazil. Operating along the coast of South America through late July, Alabama enjoyed a successful spell that saw it capture twenty-nine Union merchant ships. Crossing to South Africa, Semmes spent much of August refitting Alabama at Cape Town. Eluding several pursuing Union warships, Alabama moved into the Indian Ocean. Though Alabama continued to increase its tally, hunting became increasingly sparse particularly when it reached the East Indies. After overhauling at Candore, Semmes turned west in December. Departing Singapore, Alabama was increasingly in need of a full dockyard refit. Touching at Cape Town in March 1864, the raider made its sixty-fifth and final capture the following month as it steamed north toward Europe. Raphael Semmes - Loss of CSS Alabama: Reaching Cherbourg on June 11, Semmes entered the harbor. This proved a poor choice as the only dry docks in the city belonged to the French Navy whereas La Havre possessed privately-owned facilities. Requesting use of the dry docks, Semmes was informed that it required the permission of Emperor Napoleon III who was on vacation. The situation was made worse by the fact that the Union ambassador in Paris immediately alerted all Union naval vessels in Europe as to Alabamas location. The first to arrive off the harbor was Captain John A. Winslows Kearsarge. Unable to gain permission to use the dry docks, Semmes faced a difficult choice. The longer he remained at Cherbourg, the greater the Union opposition would likely become and the chances increased that the French would prevent his departure. As a result, after issuing a challenge to Winslow, Semmes emerged with his ship on June 19. Escorted by the French ironclad frigate Couronne and the British yacht Deerhound, Semmes approached the limit of French territorial waters. Battered from its long cruise and with its store of powder in poor condition, Alabama entered the battle at a disadvantage. In the fight that ensued, Alabama hit the Union vessel several times but the poor condition of its powder showed as several shells, including one that hit Kearsarges sternpost, failed to detonate. Kearsarge faired better as its rounds hit with telling effect. An hour after the battle began, Kearsarges guns had reduced the Confederacys greatest raider to a burning wreck. With his ship sinking, Semmes struck his colors and requested help. Sending boats, Kearsarge managed to rescue much of Alabamas crew, though Semmes was able to escape aboard Deerhound. Raphael Semmes - Later Career Life Taken to Britain, Semmes remained abroad for several months before embarking on the steamer Tasmanian on October 3. Arriving in Cuba, he returned to the Confederacy via Mexico. Arriving in Mobile on November 27, Semmes was hailed as a hero. Traveling to Richmond, VA, he received a vote of thanks from the Confederate Congress and gave a full report to Davis. Promoted to rear admiral on February 10, 1865, Semmes took command of the James River Squadron and aided in the defense of Richmond. On April 2, with the fall of Petersburg and Richmond imminent, he destroyed his ships and formed a Naval Brigade from his crews. Unable to join General Robert E. Lees retreating army, Semmes accepted the rank of brigadier general from Davis and moved south to join General Joseph E. Johnstons army in North Carolina. He was with Johnston when the general surrendered to Major General William T. Sherman at Bennett Place, NC on April 26. Initially paroled, Semmes later was arrested in Mobile on December 15 and charged with piracy. Held at the New York Navy Yard for three months, he gained his freedom in April 1866. Though elected probate judge for Mobile County, federal authorities prevented him from taking office. After briefly teaching at the Louisiana State Seminary (now Louisiana State University), he returned to Mobile where he served as a newspaper editor and author. Semmes died at Mobile on August 30, 1877, after contracting food poisoning and was buried in the citys Old Catholic Cemetery. Selected Sources US Navy: Captain Raphael Semmes CSS AlabamaEncyclopedia of Alabama: Raphael Semmes HistoryNet: Confederate Raider Raphael Semmes

The Red Badge of Courage Book Summary

The Red Badge of Courage Book Summary The Red Badge of Courage was published by D. Appleton and Company in 1895, about thirty years after the Civil War ended. Author Born in 1871, Stephen Crane was in his early twenties when he moved to New York City to work for the New York Tribune. He was apparently fascinated and influenced by the people he observed living in the gritty art scene as well in the poverty-filled tenement housing. He is credited with being influential among the early American Naturalist writers. In his two major works, The Red Badge of Courage and Maggie: A Girl of the Streets, Cranes characters experience internal conflict and outside forces that overwhelm the individual. Setting The scenes take place in the fields and roads of the American South, as a Union regiment wanders through Confederate territory and encounters the enemy on the battlefield. In opening scenes, the soldiers wake slowly and seem to long for action. The author uses words like lazy, quaint, and retiring, to set the tranquil scene, and one soldier claims, Ive got ready to move eight times in the last two weeks, and we aint moved yet. This initial tranquility provides a sharp contrast to the harsh reality that the characters experience on the bloody battlefield in chapters to come. Main Characters Henry Fleming, the main character ( the protagonist). He undergoes the most change in the story, going from a cocky, romantic young man eager to experience the glory of war to a seasoned soldier who sees war as messy and tragic. Jim Conklin, a soldier who dies in an early battle. Jims death forces Henry to face his own lack of courage and reminds Jim of the stark reality of war. Wilson, a mouthy soldier who cares for Jim when he is wounded. Jim and Wilson seem to grow and learn together in battle. The wounded, tattered soldier, whose nagging presence forces Jim to face his own guilty conscience. Plot Henry Fleming begins as a naive young man, eager to experience the glory of war. He soon faces the truth about war and his own self-identity on the battlefield, however. As the first encounter with the enemy approaches, Henry wonders if he will be brave in the face of battle. In fact, Henry does panic and flee in an early encounter. This experience sets him on a journey of self-discovery, as he struggles with his conscience and re-examines his opinions about war, friendship, courage, and life. Although Henry fled during that early experience, he did return to the battle, and he escapes condemnation because of the confusion on the ground. He ultimately overcomes the fear and takes part in courageous acts.   Henry grows as a person by gaining a better understanding of the realities of war.   Questions to Ponder Think about these questions and points as you read the book. They will help you determine a theme and develop a strong thesis. Examine the theme of inner versus outer turmoil: What role does Henrys conscience play?What does Henry learn from each soldiers death? Examine male and female roles: What role does Henrys mother play?What does this novel suggest about our concepts of masculinity and courage? What does this novel suggest about our concepts of war? Possible First Sentences Sometimes, we have to come face to face with our fears to learn something about ourselves.Have you ever been really afraid?The Red Badge of Courage, by Stephen Crane, is a story about growing up.What is bravery? Sources: Caleb, C. (2014, Jun 30). The red and the scarlet.  The New Yorker,  90. Davis, Linda H. 1998.  Badge of Courage: The Life of Stephan Crane. New York: Mifflin.

Compare newsreels to television news today. What do they have in Essay

Compare newsreels to television news today. What do they have in common and how do they differ - Essay Example But newsreels were not access centered. It was about bringing news even if not everyone was able to see it as newsreels were only available in movie theatres - and not in all movie theatres. This fact is also important for another characteristic. Television news today brings us the latest news. We are connected to the entire globe and we are told events that may have occurred a couple of minutes earlier. It was not the case for newsreels which brought images of events which were sometimes one or two weeks old. It was therefore impossible to receive instantaneous news as it is today, and live news could only be a dream for the decades to come. This dream come true thanks to the development of other Medias that help the broadcasting and the making of television news. Comparing newsreels and television news is not only a matter of accessibility. We also have to consider the format. The newsreels were often short, no longer than fifteen minutes. Today, television news can be an hour long and can present - with more details - several events that happened during the day. Newsreels were often commented by an off voice who only described the playing images. In television news there is one - or sometimes two TV hosts - who introduce the subject.

The effects of lead contamination on fetal brain development Essay

The effects of lead contamination on fetal brain development - Essay Example Continuous exposure will fix lead to the bone in areas where the most growth is occurring. The half life of lead in the blood is 35 days, it remains in soft tissue for 40 days and is then stored in the bones for 20 or 30 years (Cullen et al, pg 9). The lead levels may not reflect an accurate count of the total lead in the system as lead is released when calcium declines and soldiers with shrapnel wounds may have resurfacing lead return to the bloodstream. Lead exposure can happen in some unusual ways such as having consumed homemade liquor or moonshine or from chewing on an imported toy. 90% of ingested lead is eliminated unabsorbed (Cullen et al pg 10). Children are also more susceptible to lead poisoning as they have less bone density than adults and thus the lead remains stored in soft tissues producing toxic effects (Cullen et al, pg 10). Osteoporosis can also lead to elevated blood levels as the decreased calcium releases the lead back to blood and soft tissue. "The effects of lead poisoning on the brain are manifold and include delayed or reversed development, learning disabilities, seizures, coma and even death (Marcus, pg 2). Adults with lead poisoning suffer from depression, aggression, low sperm counts and underweight babies. The problem is world wide and crosses all economic backgrounds with greater percentages in poor areas. The numbers of lead poisoning cases in children has declined over the decades since lead paint was banned and plumbing codes have been updated, however, it remains a concern for low income families living in older buildings in need of renovation. The pregnant women could absorb lead through the water supply and if... Lead contamination is not a phenomenon of the past and lead poisoning in newborns and young children still prevails. Old buildings are filled with outdated plumbing and leaded paint, parents work in lead related occupations and cultural traditions often use lead tainted home remedies.Through education and case management the Maternal Child nurse can use his/her role to prevent and provide early detection and treatment in lead poisoning. Lead poisoning is the most serious chronic environmental illness affecting children in spite of interventions to prevent it and cases of lead poisoning still present at hospitals and clinics in the twenty-first century. The Maternal Child nurse can aid the childbearing family with physical assessments, teaching self care and nutrition, environmental assessments, family teaching and fetal assessment. The guidance offered during the pregnancy and post partum newborn period can serve to prevent unnecessary exposure and absorption of lead. Parents can be made aware of the risks of lead exposure and the importance of early intervention and treatment for the child. While lead products are still being produced, many older buildings have outdated plumbing and ethnic products may contain lead, the Maternal Child nurse can offer services and support to decrease the numbers of poor children with lead poisoning. Monitoring of the home environment, education and case management can ensure that fewer babies are born with impaired brain functions leading to a life time of physical and behavior problems.

Examining The Evolution Of Integrated Circuits Information Technology Essay

Examining The Evolution Of Integrated Circuits Information Technology Essay In electronics, an integrated circuit also known as IC, microcircuit, microchip, silicon chip, or chip is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a thin substrate of semiconductor material. Integrated circuits are used in almost all electronic equipment in use today and have revolutionized the world of electronics. A hybrid integrated circuit is a miniaturized electronic circuit constructed of individual semiconductor devices, as well as passive components, bonded to a substrate or circuit board. Integrated circuits were made possible by experimental discoveries which showed that semiconductor devices could perform the functions of vacuum tubes, and by mid-20th-century technology advancements in semiconductor device fabrication. The integration of large numbers of tiny transistors into a small chip was an enormous improvement over the manual assembly of circuits using discrete electronic components. The integrated circuits mass production capability, reliability, and building-block approach to circuit design ensured the rapid adoption of standardized ICs in place of designs using discrete transistors. Invention The idea of an integrated circuit was conceived by a radar scientist working for the Royal Radar Establishment of the British Ministry of Defence, Geoffrey W.A. Dummer (1909-2002), who published it at the Symposium on Progress in Quality Electronic Components in Washington, D.C. on May 7, 1952. He gave many symposia publicly to propagate his ideas. Dummer unsuccessfully attempted to build such a circuit in 1956. The integrated circuit can be credited as being invented by both Jack Kilby of Texas Instruments and Robert Noyce of Fairchild Semiconductor working independently of each other. Kilby recorded his initial ideas concerning the integrated circuit in July 1958 and successfully demonstrated the first working integrated circuit on September 12, 1958. In his patent application of February 6, 1959, Kilby described his new device as à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒâ€¦Ã¢â‚¬Å"a body of semiconductor material wherein all the components of the electronic circuit are completely integrated.à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ã‚  Kilby won the 2000 Nobel Prize in Physics for his part of the invention of the integrated circuit. Robert Noyce also came up with his own idea of integrated circuit, half a year later than Kilby. Noyces chip had solved many practical problems that the microchip developed by Kilby had not. Noyces chip, made at Fairchild, was made of silicon, whereas Kilbys chip was made of germanium. Early developments of the integrated circuit go back to 1949, when the German engineer Werner Jacobi (Siemens AG) filed a patent for an integrated-circuit-like semiconductor amplifying device showing five transistors on a common substrate arranged in a 2-stage amplifier arrangement. Jacobi discloses small and cheap hearing aids as typical industrial applications of his patent. A commercial use of his patent has not been reported. A precursor idea to the IC was to create small ceramic squares (wafers), each one containing a single miniaturized component. Components could then be integrated and wired into a bidimensional or tridimensional compact grid. This idea, which looked very promising in 1957, was proposed to the US Army by Jack Kilby, and led to the short-lived Micromodule Program (similar to 1951s Project Tinkertoy). However, as the project was gaining momentum, Kilby came up with a new, revolutionary design: the IC. The aforementioned Noyce credited Kurt Lehovec of Sprague Electric for the principle of p-n junction isolation caused by the action of a biased p-n junction (the diode) as a key concept behind the IC. Scale of integration Small Scale Integration (SSI): SSI were the first integrated circuits, which contained only a few transistors. They consisted of circuits, containing transistors numbering in the tens. SSI circuits were vital to early aerospace projects. The Minuteman missile and the Apollo program both needed lightweight digital computers for their inertial guidance systems. the integrated-circuit technology development was led by the Apollo guidance computer, while the Minuteman missile bolstered it into mass-production. The purchase of almost all of the available integrated circuits from 1960 through 1963, was from these programs, and basically almost provided the demand that funded the production improvements. In turn this got the production costs from $1000 per circuit (in 1960 dollars) to a mere $25 per circuit (in 1963 dollars). They began to become used in consumer products at the turn of the decade, for example in FM inter-carrier sound processing in television receivers. Medium Scale Integration (MSI): In this devices which contained hundreds of transistors on each chip. Also, these cost little more to produce than SSI devices, and also allowed more complex systems to be produced, using smaller circuit boards and less assembly work (due to fewer individual components). Large Scale Integration (LSI): Large-Scale Integration ( LSI ) by the mid 1970s. Chips now were developed with tens of thousands of transistors. Integrated circuits such as 1K-bit RAMs, calculator chips, and the very first microprocessors had under 4000 transistors and saw a moderate quantity of manufacture in the early part of 1970. True LSI circuits, were approaching 10000 transistors and began to be produced for computer main memories and second-generation microprocessors in around 1974 . Very Large Scale Integration (VLSI): Starting in the 1980s and continuing through to this day, was Very Large-Scale Integration (VLSI). This starts with hundreds of thousands of transistors in the early 1980s, and continues beyond several billion transistors as of 2007. No single breakthrough allowed the increase in complexity. Manufacturing moved to cleaner fabs and smaller rules, which allowed them to produce chips with more transistors with adequate yield, (summarized by the International Technology Roadmap for Semiconductors). Design tools also saw much improvement, this was enough to make it practical to finish the designs in reasonable times. Energy efficient CMOS replaced NMOS and PMOS, which avoided a prohibitive increase in power consumption. Many other factors helped also. By 1986 the first one megabit RAM chips were introduced, these contained more than a million transistors. 2005 saw microprocessor chips passing the billion transistor mark. The trend continues largely unabated, with chips introduced in 2007 containing tens of billions of memory transistors. Ultra Large Scale Integration (ULSI): Ultra-Large Scale Integration was proposed for chips of complexity of more than 1 million transistors. Wafer-scale integration (WSI): Wafer-scale integration (WSI) is a system of building extremely large integrated circuits that uses a whole silicon wafer to produce a single super-chip. Through a combination of large size and reduced packaging, WSI could lead to dramatically reduced costs for some systems, notably in massively parallel supercomputers. The name is taken from the term Very-Large-Scale Integration, the current state of the art during the development time of WSI. System-on-a-Chip (SoC or SOC): It is an integrated circuit where all the components needed for a computer (or other system), are included on a single chip. The design of this device can be costly and extremely complex, and also building disparate components on a single piece of silicon, could compromise the efficiency of some of its elements. Nevertheless these drawbacks are offset by low manufacturing and assembly costs, and by a vastly reduced power budget (as the signals among the components are kept on-die, much less power is required). Three Dimensional Integrated Circuit (3D-IC): It has two or more layers of active electronic components, these are integrated both horizontally and vertically into a single circuit. Communication between the layers relies on on-die signaling, so the power consumption is lower than that of equivalent separate circuits. Sensible use of short vertical wires can substantially reduce the total wire length, for faster operation and efficiency. Classification of ICs by Structure: 1.Monolithic ICs 2.Hybrid or Multichip ICs Thin film Thick film Monolithic ICs: In these ICs all circuit components (i.e. active and passive) are fabricated inseparable within a single continuous piece of silicon crystalline material called WAFER. In Monolithic ICs all components are formed simultaneously by a diffusion process. Then a metallization process is used in interconnecting these components to form the desired circuit. Hybrid ICs: In Hybrid ICs passive components (such as resistors and capacitors) and the interconnection between them are formed on an insulating substrate, the substrate is used as a chassis for the integrated components .Active components such as transistors and diodes, as well as Monolithic ICs are then connected to form a complete circuit. Hybrid ICs are further classified as Thin Film and Thick Film, depending on the method used to form the resistor, capacitor and related interconnections on the substrate. 1.Thin Film: When a suitable material is evaporated on substrate informing resistors, capacitors and interconnections, a Thin Film Hybrid IC is obtained. 2.Thick Film: When the resistors, capacitors andinterconnections are etched on the substrate by silk screening, a Thick Film Hybrid IC is obtained. Classification of ICs by Function: Linear ICs: They perform amplification and other essential linear operation on signals. Non Linear ICs: They require only ON-OFF operation of the transistor, thus the design requirements for these circuits are less stringent than those of linear ICs. ICs can be classified into ANALOG, DIGITAL and MIXED SIGNAL Digital integrated circuits: It contain anything from one to millions of logic gates, flip-flops, multiplexers, and other circuits in a few square millimeters. The small size of these circuits allows high speed, low power dissipation, and reduced manufacturing cost compared with board-level integration. These digital ICs, typically microprocessors, DSPs, and micro controllers work using binary mathematics to process one and zero signals. Analog Integrated cicuits: It contains sensors, power management circuits, and operational amplifiers, work by processing continuous signals. They perform functions like amplification, active filtering, demodulation, mixing, etc. Analog ICs ease the burden on circuit designers by having expertly designed analog circuits available instead of designing a difficult analog circuit from scratch. Mixed integrated cicuits: ICs can also combine analog and digital circuits on a single chip to create functions such as A/D converters and D/A converters. Such circuits offer smaller size and lower cost, but must carefully account for signal interference. IC TERMINOLOGY Some common terms used in fabricating ICs are: Bonding: Attaching the die on ceramic substrate and then connecting the leads to the package. Chip: An extremely small part of silicon wafer on which IC is fabricated. Circuit Probing: Testing the electrical performance of each IC chip with the help of microscope. Diffusion: A process that consist of the introduction of impurities into selected regions of a wafer to form junctions. Encapsulation: putting a cap over the IC and sealing it in an inert atmosphere. Epitaxy: A process of controlled growth of a crystalline doped layer of silicon on a single crystal substrate. Mask: A glass plate with desired pattern of diffusion or metallization. Metallization: A process for providing ohmic contacts and interconnections by evaporating aluminum over the chip. Photolithography: A process to transfer geometrical pattern from the mask to the surface of the wafer. Photoresist: A light-sensitive material that hardens when exposed to ultraviolet light. Wafer: A thin disk of semiconductor in which number of ICs are fabricated simultaneously. Advantages of ICs over Discrete Components: Extremely small physical size Low power consumption Reduced cost Increased system reliability Increased operating speed Increase equipment density Improved function performance High yield Advances in integrated circuits Along with the advanced integrated circuits are that of the cores or microprocessors, which handle many of todays appliances from computers and cellular phones to digital microwave ovens. Digital memory chips and ASICs are examples of other groups of integrated circuits which are important to the modern information society. Whilst cost of designing and developing a complex integrated circuit is high, when costs are spread across typically millions of production units, the individual IC cost is reduced. The performance of Integrated circuits is high as the small size allows short traces, which then allows low power logic (for example CMOS), to be used at quick switching speeds. Integrated circuits have constantly migrated to smaller feature sizes over time thus, allowing more circuitry to be placed on each chip. The increase in capacity per unit area can be used to decrease cost and increase functionality, this can be seen in Moores law where it states that the number of transistors in an integrated circuit doubles every two years in a modern interpretation. Normally as the feature size shrinks, there can be seen improvements in everything. The cost per unit and the power consumption of switching go down, and the speed goes up. Integrated circuits with nanometer-scale devices have a variety of problems, one of which being current leakage, however these problems are not unconquerable and it is likely they will be solved, or improved at least, by the introduction of high-k dielectrics. As the power consumption and speed gains are apparent to the end user, there is competition among manufacturers to use finer geometries. The process/expected progress over the next few years, is described by the International Technology Roadmap for Semiconductors (ITRS). Popularity of ICs   Only a half century after their development was initiated, integrated circuits have become ubiquitous. Computers, cellular phones, and other digital appliances are now inextricable parts of the structure of modern societies. That is, modern computing, communications, manufacturing and transport systems, including the Internet, all depend on the existence of integrated circuit. Future scope of integrated circuits The future of integrated electronics is the future of electronics itself. The advantages of integration will bring about a proliferation of electronics, pushing this science into many new areas. Integrated circuits will lead to such wonders as home computers.or at least terminals connected to a central computer .automatic controls for automobiles, and personal portable communications equipment. The electronic wristwatch needs only a display to be feasible today. But the biggest potential lies in the production of large systems. In telephone communications, integrated circuits in digital filters will separate channels on multiplex equipment. Integrated circuits will also switch telephone circuits and perform data processing. Computers will be more powerful, and will be organized in completely different ways. For example, memories built of integrated electronics may be distributed throughout the machine instead of being concentrated in a central unit. In addition, the improved reliabil ity made possible by integrated circuits will allow the construction of larger processing units. Machines similar to those in existence today will be built atlower costs and with faster turn-around.

How does Bennett present different teaching styles in ‘The History Boys’?

Bennett presents three contrasting teaching styles in the History Boys through the characters of Hector, Mrs Lintott, and Irwin. All three of the characters have their own unique attitude towards the boys' impending Oxbridge examinations, putting the boys in the difficult position of having to keep a reasonable balance between teaching and learning styles whilst making every effort to maintain the good-humoured relationships they have with each of their teachers, as well as striving to achieve well in their examinations. Whilst Hector brands the boys' Oxbridge aspirations as ‘silliness', he has a dedication and love for knowledge which he imparts during his lessons, and generally, to his students. While on the subject of General Studies, he quotes ‘All knowledge is precious whether or not it serves the slightest human use', which encapsulates, in one phrase, how highly he values any kind of knowledge as well as how he tries to teach the boys. It shows that Hector sees knowledge as precious- he has an unconventional kind of teaching style which he sees as vital to the boys' education of life in general, and of particular importance is that the boys are aware of this. As Timms says, ‘Mr. Hector's stuff's not meant for the exam, sir. It's to make us more rounded human beings. ‘ when the boys are questioned by Irwin on Hector's teaching style. Furthermore, Hector believes in giving the boys the ability to defy the education they have been given- ‘You give them an education. I give them the wherewithal to resist it' he says, in conversation with factual Mrs. Lintott. Hector's teaching style is lively and compassionate, teaching the boys to love what they do. In contrast, Irwin, who is hired to prepare the boys for their exams, is totally centered on exam techniques. When reflecting on the essays he has just marked, he remarks that the other boys and girls who ‘have been to Rome and Venice, Florence and Perugia' will ‘know when they come to do an essay like this on the Church on the eve of the Reformation that some silly nonsense on the foreskins of Christ will come in handy. And doing so he advises the boys to make their essays controversial so they stand out, regardless of what is true or what is considered correct or disciplined- in fact, Irwin approaches History in a rebellious and oppositional way to spark questioning. Iriwn's bold stance on education is summed up when he says that ‘truth is no more at issue in an examination that thirst at a wine-tasting or fashion at a strip tease'- yet again reinforcing the idea that if the boys want to get in to Oxford and Cambridge, they need to make their essays contentious and different rather than ‘Dull. Read also History Quizzes Dull. Abysmally Dull. ‘ His idea that ‘silly nonsense' will catch the examiner's eye comes into conflict with Hector's teaching style and the ‘token' of Hector's trust when Irwin finds out that the boys have acquired countless ‘gobbets' from Hector's lessons that he believes would be useful for the exams- ‘Don't tell me that's useless knowledge', he says, pointing out that any piece of knowledge or quote or ‘gobbet' could help them get through their exams. Hector's compassionate teaching is at complete odds with Irwin's edgy style, and even though he disagrees wholeheartedly with the way Irwin approaches learning- ‘call them what you like, but do not call them ‘gobbets'- he is willing to help Irwin do his job- ‘However, if you think it will help, I will speak to them. ‘ Mrs Lintott, the boys' history teacher, has a very factual and straightforward approach to teaching which sees the boys through their A levels- ‘Their A levels are very good. And that is thanks to you, Dorothy. She is more concerned with facts than anything else, and her belief is that ‘Plainly stated and properly organised facts need no presentation, surely. ‘ But the headmaster of the school is looking for something different, rather like Irwin- ‘Think charm. Think polish. Think Renaissance Man. ‘ Mrs Lintott is frustrated by the need for ‘presentation' and the fact that the dons fall for the tactics employed by people like Irwin, however, and compares it to ‘A sprig of parsley, you mean? Or an umbrella in the cocktail? outlining her dry, sarcastic, cynical humour, and showing her disrespect for jazzing up facts to be acknowledged and noticed, as Irwin does. As Rudge puts it, when speaking to Mrs Lintott about Irwin, ‘You've force-fed us the facts; now we're in the process of running around acquiring flavour. ‘ In conclusion, Bennett presents three different teaching styles in the play by showing the audience not just the teachers' lessons but by giving the audience an idea of what the teachers' personalities and outlooks on life are, showing that teaching and learning involve so much more than exam res ults.