Build a Computer Essay Example | Topics and Well Written Essays - 750 words

Build a Computer - Essay Example Both systems have their individual advantages, but the popularity and diversity in the PC is much more. Hardware as well as software can be chosen in order to suit one’s individual needs. With the advent of internet and the usage of computers spreading all over the world, the PC has emerged as the undisputed leader as the most commonly used computer system. A personal computer based on the ‘Microsoft Windows’ operating system is therefore an ideal selection for our school which can have all the essential components and software within a budget of $ 2000. The first and foremost component essential for building a PC is the motherboard and the central processing unit (CPU) (tomshardware.com). A power supply and the computer casing are the other startup essentials in which all components are installed. However, it is better to buy the above components in a preassembled unit which is offered by prestigious brands in all sorts of shapes and specifications. Hewlett Packard, Dell, Gateway, Acer are some of the popular brand names offering such preassembled units with a variety of specifications. The popular motherboards in the market are capable of handling complex computer hardware and software issues and are engineered to handle either the ‘Intel’ or the ‘AMD’ CPU’s. A CPU is the heart of the computer and its speed and processing power influence the overall performance of the computer system. The sound, video and network support come inbuilt in the modern motherboards. The motherboards have slots and compo nents which can take on other hardware needed to enhance the overall performance depending upon the requirement, such as enhanced video capability or coupling ability with other electronic devices dependent of computers for their functioning. Hard disks are the storage media which contain all the data and software needed to run the computer and are

Noble Prize in Physics Essay Example for Free

Noble Prize in Physics Essay The Nobel Prize was established in the year 1895 following the honor of Alfred Nobel who was among the chemists considered influential and powerful in the scenes of inventions. It is imperative to note that Nobel Prize in Physics is regarded as a precious award in this field of study and thus its reception comes with a lot of dignity and respect. On the third day of May, the year 1902, a year after the Nobel Prize was first awarded, Alfred Kastler was born. This was in Guebwiller in Alsace where he also studied in his earlier life before he continued further at Oberrrealchile of Colmar. He was later to collect the Nobel Prize in Physics in 1966. Kastler taught for close to five years before furthering his career to higher education by joining Faculty of Science at Bordeaux . He later worked as a lecturer at Clermont_Ferrand for two years, then at Bordeaux again, but this time as a professor for two years. In 1941, George Bruhat asked Alfred to abandon his occupation in Germany and join them in Paris where he was to assist in building physics teaching program at Ecole Normale Superieure. Although the post he was offered was provisional, he did accept to take it. He was later confirmed in 1952 at the Paris Faculty of Sciences when he was allocated an official position. Alfred Kastler is reported to have developed an interest in science in his junior level studies particularly because of his mathematics teachers at that time who greatly influenced his choice. He was later to strengthen his foundation in mathematics when he joined a special mathematics class held by some two influential scientists, Brunold and Mahuet. It was these two who made him secure an entry to the Ecole Normale Superieure. This college offered a rather friendly environment where one could comfortably study to great depth his field of specialization. Bohr’s atom and other interesting concepts of quantum physics were introduced to Alfred by one of his teachers Eugene Bloch. Kastler developed a particular interest in the approach used by Sommerfeld in his analysis of atomic structures and the explanations on the observable spectral lines. Sommerfeld’s book explained the famous principles of conservation of momentum as applied in the investigation of energy exchange processes between atoms and even radiation by A. Rubinowicz. Interpretation of various selection rules for example, for azimuthal quantum number and also polarization in the Zeeman effect are traced to this principle. All the research work carried out by Kastler was also stemmed on this principle. Alfred went ahead and even carried out experiments in attempt to elucidate there exist transverse component of the momentum of photons. These experiments failed since he discovered they never existed. This he realized after appreciating the results obtained by R. Frisch who was his predecessor in this field of study. At the time when Alfred Kastler was appointed to assist professor Pierre Daure back at Bordeaux Faculty of Science, most of his free time was devoted to research work since his duties ten were less strenuous. It was at this time that Professor Daure introduced him into the field of experimental spectroscopy. Alfred studied optical spectrometry specifically, atomic fluorescence and also Raman spectroscopy. During his studies, the luminescence of sodium atoms in the upper atmosphere greatly interested him leading to his discovery of the D line of the twilight sky that could actually get absorbed by the sodium vapor. He also carried out intensive research at Abisko exposing his experiments to prolonged twilight and together with his colleague, Jean Bricard, he demonstrated that D line is polarized. This is indeed justified if this emission mechanism produced by solar radiation is of the optical resonance type. Alfred remained focused and persistent in his research thereby developing a systematic approach to the consequences of the principal of conservation of angular momentum as observed in optical (light) scattering and also in fluorescence. During this process, he realized that optical excitation of atoms and especially when done in steps, was a very interesting method in experimental physics since the operator could at will subject different monochromatic sources of radiation to polarization and then observe the atom rise through successive steps depending on the absorbed increased energy amounts. Many other scientists applied various methods to investigate atoms especially at the fundamental state; something was yet to be done about their excited states. The suggestion to extend investigation methods to the excited states of atoms was made by one renowned scientist, Bitter, who also Kastlers’ former student. It was then that Kastler and Brossel resolved to use â€Å"double resonance method†. This method was a little bit complicated and involved a combination of the already existing methods of analysis; optical resonance and magnetic resonance. Experiments involving â€Å"Double resonance† involved the use of an r. f field of a corresponding frequency to the interval observed in Zeeman splitting. This in turn depolarizes polarized ground state resulting into increased or accelerated optical absorption as controlled using a photodiode. Since Brossel had prior knowledge on the study of exited states which he did back at M. I. T and Kastler was an expert in optical pumping, this was a great boost particularly when it came to combining the two methods. Together, they worked to perfect the methods receiving assistance from young energetic intellectuals from Ecole Normale in Paris. Kastler is also reported to have had very stimulating lectures about this particular field. According to his students, he described atoms and photons in the simplest of ways making them much more interesting than they had imagined, posing new possibilities to be explored further in this field. He considered himself a student and was always eager to be taught and explore new things. No wander he sometimes sat amid the learners keenly following lectures on matrix theory! His analysis in the earlier stages involved the use of mercury atom which he excited optically in the presence of a magnetic field. He observed only selected Zeeman sublevels presented in those exited states. Of significant interest was the observable selection that still existed even in the absence of magnetic field (zero magnetic fields). Alfred also realized that Fermi and Rasetti had used alternating magnetic field in their experiments on excited atoms but never studied resonance phenomenon of the same. It is thus indeed the polarized light which permits this detection using light of the magnetic resonance of the excited states. In the process of applying double resonance by Jean, Alfred showed that are optically excitated using circularly polarized light enabled the transfer of angular momentum to the atoms. The French physicist won the respected Nobel Prize for Physics in 1966. This followed his new discovery, development and implementation of methods used in observing Hertzian resonance within atoms. At that time, he was the professor in charge of Laboratory physics at Ecole Normale Superieure. His research work that saw him earn this award initiated the study of atomic structures in greater depths using emitted radiations from the atoms under excitation by light waves or even radio waves. He actually used â€Å"Optical pumping method† to stimulate atoms from their fundamental state other excited states. This technique is currently utilized to produce spin alignment in a selected gas with specific atoms. For instance, application of circularly polarized light at specific frequencies will initiate transitions from ground state to excited states. The light energy used in the process of stimulating the atoms was greatly re-emitted and thus both maser and laser technologies trace their roots to optical pumping. This technique, though comparatively simple, it is significantly applied in measuring hyperfine splitting effect and even nuclear magnetic moments as exhibited by some suitable atoms. This forms the fundamental principles behind the operation of a low-field magnetometer and also that of an atomic clock. It is also imperative to appreciate that as Alfred and his team was progressing with their research, several foreign teams reported to have achieved excellent results using techniques that were developed by him. They could actually measurements on nuclear quadruple electric moments as observed in alkali metals among many other discoveries. Alfred Kastler spent most of his research time studying ground and also excited states of atoms. This brought him a fat harvest of results especially on the quality of the data he obtained together with his team while studying various parameters of an atom. For instance, their data helped them analyze relaxation processes making them determine precise and exact values of nuclear magnetic resonance in the process. Consequently, they made several discoveries involving high-order perturbations where he demonstrated Hertzian resonance shifts in the act of optical irradiation amongst many other phenomenons. His significant contribution to this field of physics was thus worth rewarding. References L. Allen and J. H. Eberly (1987), Optical Resonance and Two-Level Atoms. Dover Publications, New York Alfred Kastler. (2009). â€Å"Encyclopedia Britannica†. Retrieved April 27, 2009, from http://www. britannica. com/EBchecked/topic/313094/Alfred-Kastler A. Kastler. (1967) , Optical methods for studying Hertzian resonance. Science Harald Klepel and Dieter Suter. ( 1992. ) Transverse Optical pumping with polarization-modulated light. Optics Commun. ,

Comparing Romeo and Juliet and West Side Story :: comparison compare contrast essays

Romeo and Juliet versus West Side Story      Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Romeo and Juliet, West Side Story, two timeless dramas that will live forever.   Although both of these stories have many similarities, there are also many differences.   These differences include the differences in sililoquy, the fact that Maria doesn't die, the fact that we never see Tony or Maria's parents, as well as the issues of marriage, the importance of gangs and families to each story.   To understand these differences, I have read and/or watched both Romeo and Juliet, and the similar tragedy, West Side Story.      Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Above, I named a few of the many differences between William Shakespeare's Romeo and Juliet and Ernest Leaman's screenplay, West Side Story. One main difference is that in Romeo and Juliet the sililoquy is spoken while in West Side Story there is sililoquy, but it is in song.   While both equally express the character's feelings at the moment, it is my feeling that West Side Story's musical style brings the viewer/listener further into the play and makes the play more effective.   An example of this is when, in Act II, Scene II, of Romeo and Juliet, otherwise known as the balcony scene, Romeo expresses his thoughts in a sililoquy until Juliet shows up.   While in Romeo and Juliet all of this is spoken, in West Side Story, this is written as music shared between Maria and Tony.      Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Another major difference between these two stories is that in Romeo and Juliet, Juliet sees Romeo dead and decides to kill herself.   While, in West Side Story, Tony (the Romeo of the play) does die - shot by Chino- Maria is not so stricken and overshelmed that she decides to kill herself.   This is very important because in Romeo and Juliet, neither Romeo or Juliet is allowed to move on with their lives.   In West Side Story, however, I'm sure Maria, although not shown in the film, moves on and gets over Tony.      Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   My theory on why the above is true, is that Romeo and Juliet are kept apart by family ties or blood; Juliet a Capulet and Romeo a Montague.   Blood ties are what family is all about and tend to be very strong bonds.

‘Of Mice and Men’: the relationship between Curley and Curley’s wife Essay

In the novel ‘Of Mice and Men’, the relationship between Curley and Curley’s wife is very unstable lacking communication, love and respect. Additionally neither one showed attention for one enough, Curley liked to believe his wife was a possession this is shown by the quote ‘’you seen a girl around here? He demanded angrily’’ also ‘’ Go back home’’. These quotes implies that Curley is an extremely restless and always looking for her, furthermore he is an aggressive man, ordering people and getting away with it being the Boss’s son. In the relationship neither one is happy, Curley’s wife is flirtatious by ‘putting her self-out there’ and ‘kicking her legs about’ which shows that she is lonely and lacking the attention needed. But, this must have been expected being the only women on the ranch. She also likes to manipulate and intimidate Curley which drives him crazy, but s he enjoyed it, because it provided her power. Even though Curley’s wife despised Curley she could never leave him. In the 1930’s, the year this novel was set, once married the women became the man’s belonging, and the women’s belongings also became his such as; money, clothes etc. Curley does care about his wife but is shown in an unexpected way, for example when Curley is trying to find her and being restless till he succeeds to do so. Even Whit tells him this by saying ‘’yella-jackets in his drawers’’ this means that Whit’s implying that Curley has ants in his pants. Curley could be seen in either of two perspectives, either him being protective to her and being paranoid and not wanting to lose her to ‘lower’ class with-in the ranch. Alternatively people can see this as being controlling her, wanting to know where she is every second of the day. Curley’s wife married Curley the day they meet, which can be seen as love at first sight or on the other hand a way to escape from her mum. Which was shown for by his wife; she had only married him because she didn’t get a letter from a guy to get her into Hollywood to gain her a step closer to becoming an actress there. She believed her ‘’o’l’lady stole it’’ which made Curley’s wife resentful. Moreover a lot of people from the 1930’s would have gone to see movies in Hollywood as w way to escape the reality of the depression if it could be afforded. And mass entertainment also a multi-million dollar industry additionally huge cinemas were built which could seat more people. Hollywood became a major film-making centre.

Landslide Limo Service Essay

In regards to you request I have created a current employment compliance plan for Bradley Stonefield to ensure the process of starting a new business will be successful. Bradley Stonefield has explained his desire to start a Limousine company within the Austin TX area. Bradley Stonfield has indicated that his goal is to have25 employees within the first year of operation. The memo is to discuss and provide current employment laws and the consequences for non-compliance with said laws. Employment laws are created to protect the employer as well as the employee, failure to comply with any state or federal employee law could have an end result of complete failure, especially for smaller or new organizations. Non-compliance with employment laws can result in large or unaffordable penalties or severe actions. The memo will address 4 employment laws some are specific to Texas and the repercussion for non-compliance with said laws. The motor carrier safety improvement act of 1999, the equal employment act EEOC of 1972, employment at will for Texas, and Texas workers compensation act. The motor carrier safety improvement act of 1999: The Department of Transportation (DOT) established a separate administration with the Federal Motor Safety Administration on January 1 1999. (FMCSA, 2014) A limousine service has a standard set of regulations for smaller vehicles and larger capacity vehicles; the company must register with the FMCSA and have a current motor carrier identification report with the USDOT, must be current every two years. Each service vehicle must be insured with a minimum of the federal regulated minimum coverage in the event of a motor vehicle accident. The service driver must have and keep a current â€Å"C† class state driver’s license that includes a passenger endorsement. All drivers pre-employment must submit to a drug/alcohol test and must be willing to submit to random testing. Any service vehicle with the capacity to carry more than 9 persons and no more than 15 persons, the driver may not exceed a driving time of 10 hours. The driver/s must complete a safety inspection and maintain a vehicle safety and maintenance log before each trip prior to leaving the designated parking areas. All drivers must have a current driver’s license for the state and valid, and must either provide consent to have employer request driving records or provide current copies. Every vehicle that is used for service must be marked with a USDOT registration number and kept current. The company must keep and maintain all driving records/accident reports for drivers and vehicles for the past three years to current. (Federal limousine service and regulations, 2014) Failure to comply with federal regulations could result in a number of fees and penalties; Failure to maintain current DOT and license records can be up to or exceed $100.00 per violation, failure to maintain drug and alcohol records can be a fine up t0 $1000.00 per violation, failure to maintain current driving records can be a fine up to $2500.00 per employee, and any employee that is cited for using a vehicle during work hours for anything other than to transport a paying customer can result in up to a $10,000.00 fine. The equal employment act EEOC of 1972: The EEOC protect any persons from employment discrimination due to sex, color, religion, national origin, age, disabilities, political views, marital or family status, or sexual orientation. Failure to comply with EEOC laws can result in several lawsuits for discrimination, TSU woman’s basketball coach won a lawsuit in the sums of $730,000.00 for sexual  discrimination in 2011. She was originally hired in 2008 and then terminated shortly after, she had been threatened with a demotion and compared to a men’s coach Tony Harvey and this was terms for a lawsuit. Failure to comply with the current EEOC laws can result in a lawsuit as such and when an employee is terminated this example shows that no employee regardless of who they are should not be discriminated against due to personal feelings. Texas at-will employment â€Å"The general rule in Texas, and in most states, is that absent a specific agreement to the contrary, employment may be terminated by the employer or the employee at will, for good cause, bad cause, or no cause at all.† (Employment at will Doctrine in Texas – Appellate case law 2010) Even though is a â€Å"at-will or right to work† state federal laws still apply, if an employee is on a contracted time they are exempt from the at will law. In an organization that embraces the â€Å"at will† employer law, the employer must also agree to that an employee will not be terminated unless it is for â€Å"good reason†, if an employee is performing satisfactory work of higher they are not exempt but they are also not at risk. Again failure to comply can result in a large and/or detrimental lawsuit to the company. â€Å"The supreme court recognized in Montgomery County that the courts must carefully distinguish between carefully developed employer representation upon which an employee may justifiably rely, and general platitudes, vague assurances, praise, and indefinite promises of permanent continued employment† (Employment at will Doctrine in Texas – Appellate case law 2010) Texas workers’ compensation act: The workers compensation act is designed to tentatively and temporarily replace the wages for a worker when employment hours are missed due to an on the job injury/injuries. The law only applies when an employee is able to prove that they were injured on the job/on the clock, they are entitled to a percentage of there regular earnings and medical care for said injuries. Texas is the only state that is able to choose not to offer workers compensation in Texas less than 40% will opt out of the workers compensation coverage. An employer that has chosen to enroll with the workers compensation, the threat of a law suit for not paying medical bills, or  paying a portion of wages is not a possibility, for the remaining 40% of employers who do not use workers’ compensation are suspect to possible lawsuits that could include coverage up to full wages for time missed. Texas employees are also able to decline to pay into workers compensation, and there are limitations to collecting of filing for workers compensation: If the employee is under the influence of drugs or alcohol, if the employee suffered from a self-induced injury, the injury was caused by a non-employee or was for personal reasons, or the injury was obtained while off duty. References: FMCSA. (January 1, 2014) retrieved from Federal Motor Carrier Safety Administration: http://www.fmcsa.dot.gov/mission Federal limousine service and regulations. (2014) Retrieved from Limo service & limousine service regulations: http://www.airportcommuter.com/worldwide/federal_limo_regulations.htm Employment at will Doctrine in Texas – Appellate case law (2010) retrieved from Texas opinions: http://www.texas-opinions.com/law-employment-at-will.html

African American Music essays

African American Music essays By 1945, nearly everyone in the African American community had heard gospel music (2). At this time, gospel music was a sacred folk music with origins in field hollers, work songs, slave songs, Baptist lining hymns, and Negro spirituals. These songs that influenced gospel music were adapted and reworked into expressions of praise and thanks of the community. Although the harmonies were similar to those of the blues or hymns in that they shared the same simplicity, the rhythm was much different. The rhythms often times had the music with its unique accents, the speech, walk, and laughter which brought along with it synchronized movements. (2) The gospel piano style was based on the rhythm section concept, where the middle of the piano was used to support the singers. This area supported the singers by doubling the vocal line in harmony. The bottom, left corner of the piano was used as a bass fiddle while the upper right hand portion played the counter melodies, taking the place of a trumpet or flute. It was the right hand corner that filled in the material during the rhythmic breaks. Often times the text of the gospel songs portrayed meanings of the Trinity, blessings, thanks and lamentations. The singers used the voices to communicate their feelings about Christianity. Many singers sang through the problems and moved their audiences, often congregations, so much so that the audience forgot their own problems temporarily and the weights of the world were taken away through the music. (2) During the beginning of the Golden Age of Gospel (1945-1955), gospel music reached a near perfection and had a huge, devote audience. T he call and response form in particular flourished in the new type of music. The African American gospel song had a unique power and ability to overcome. It was a means of transcending the listeners, singers and entire congregation to a higher spiritual and emotional level. During the post-Civil War years, the congreg...

Free Essays on A Review On The Lecture Titled ‘Administrative Value Of Anthropology’

Sir Temple speaks about nature and uses of sciences, and in this lecture, he stresses on the uses of Anthropology, a subject increasing in popularity over the years. â€Å"Anthropology,† he says â€Å"is the study of mankind in all its possible ramifications, a subject far too wide for any one science to cover†¦Ã¢â‚¬  This science is classified into four different heads. Physical Anthropology is the study of human anatomy, his physical appearance, differences in physical features of different people, and their classifications. There are two sides to this study. One is the physical features, and the other, the physical actions, instincts, customary gestures, etc. A person’s actions, reactions, his tools he uses to make efficient work, no matter how crude, is studied under the technological aspect of anthropology. The society in which he lives, the customs, traditions and the way he uses his abstract reasoning, can be seen by the artifacts of the society. The abstract reasoning of a people is seen clearly by the idea of festivals, celebrations, and the organization in a pastoral field, etc. Man also is found to make items which are not for any purpose, but which represents the culture of the society he lives in. This he may use to adorn his house, or his person. He may also be interested in heavenly bodies and in experiments which have no direct benefit for him. This is the part of the Arts and Sciences the inquirer is interested in. These studies can be put to practical use. Sir Richard has illustrated the administration of the Empire of Great Britain in the early 1900’s, with the diversity of subjects from Africans, to Indians, to Chinese, to Arabians. This diversity of culture cannot be put under a general mass of subjects, with the negligence of the cultural differences all over the world. One must study the empire bit by bit, culture by culture. To begin with, one must study the geographical areas of the target society, which wi... Free Essays on A Review On The Lecture Titled ‘Administrative Value Of Anthropology’ Free Essays on A Review On The Lecture Titled ‘Administrative Value Of Anthropology’ Sir Temple speaks about nature and uses of sciences, and in this lecture, he stresses on the uses of Anthropology, a subject increasing in popularity over the years. â€Å"Anthropology,† he says â€Å"is the study of mankind in all its possible ramifications, a subject far too wide for any one science to cover†¦Ã¢â‚¬  This science is classified into four different heads. Physical Anthropology is the study of human anatomy, his physical appearance, differences in physical features of different people, and their classifications. There are two sides to this study. One is the physical features, and the other, the physical actions, instincts, customary gestures, etc. A person’s actions, reactions, his tools he uses to make efficient work, no matter how crude, is studied under the technological aspect of anthropology. The society in which he lives, the customs, traditions and the way he uses his abstract reasoning, can be seen by the artifacts of the society. The abstract reasoning of a people is seen clearly by the idea of festivals, celebrations, and the organization in a pastoral field, etc. Man also is found to make items which are not for any purpose, but which represents the culture of the society he lives in. This he may use to adorn his house, or his person. He may also be interested in heavenly bodies and in experiments which have no direct benefit for him. This is the part of the Arts and Sciences the inquirer is interested in. These studies can be put to practical use. Sir Richard has illustrated the administration of the Empire of Great Britain in the early 1900’s, with the diversity of subjects from Africans, to Indians, to Chinese, to Arabians. This diversity of culture cannot be put under a general mass of subjects, with the negligence of the cultural differences all over the world. One must study the empire bit by bit, culture by culture. To begin with, one must study the geographical areas of the target society, which wi...