Identifying a Computers Parts :: Computer Science Electronics Essays Papers

Identifying a Computer's Parts Computer is no longer something new and magical to many people nowadays, because many families now have at least one computer in their homes. It is without doubt that there are thousands and millions of computer users in the country, but is it ever possible for all of them to explain how a computer works? No. Alright, can they even classify the components of a computer appropriately? Not quite. They may know how to describe the physical appearance of a computer and they will probably include two or three other terms as well, such as monitor, keyboard or a mouse. Nonetheless, classification of a computer should not be done this way. In fact, a computer can be broken down into three distinct categories, namely output, input and CPU. The term 'output' consists of all components that display words and graphics so that a person can see them. Many people can easily understand why the monitor is a form of output device since it is the screen that tells them what the computer is actually doing. Simply put, without a monitor, the computer itself is basically useless. Another form of output, which is rarely noticed by many computer users however, is the printer. Many people have probably used a printer before, but it is just that they never realize it is also a form of output. As opposed to 'output', 'input' consists of components that take in information from the users themselves so that the computer will know the tasks it is supposed to perform and accomplish. The keyboard is classified as a form of input because this is where the users enter commands and text. There are many other forms of input as well. Nonetheless, many people just don't realize them, or are too lazy to classify them. For instance, the mouse belongs to input, since it provides a floating pointer on the screen so that the users can access commands faster and easier. The scanner is another form of input, because it acts like a photocopier, except it scans the image and makes it onto the computer screen instead of onto a piece of paper. The CPU, Central Processing Unit is probably the most important category of the three. As the name implies, it is the soul of a computer, very much alike the human brain. For unknown reasons though, people often call the CPU a computer. This is absolutely incorrect. The word computer is merely a general term which must always include all the three categories in order to operate. Perhaps the constituents of a CPU itself should be mentioned.

The Basics Behind Qualitative Research

yFundamentals of Qualitative Research Jamye D. Jeter Cameron Submitted to Dr. Curtis Maybee University of Phoenix Fundamentals of Qualitative Research When a researcher sets out to begin a study, he or she must begin by asking questions of him or herself. These questions lead to the determination of the type of research study the researcher is going to conduct. The study may be based on qualitative research, quantitative research, or both. But, in order to determine the study method and design choice, the researcher needs to see what is fueling his or her research question.Research questions based on quantitative research focuses on obtaining data that can be measured, usually in some form or numerical/statistical manner (Leedy & Ormrod, 2010). Qualitative research is based more on why certain phenomenon take place and what can be done to better understand why the phenomenon took place at all (Leedy & Ormrod, 2010). This paper will serve as a brief overview of the fundamental s of qualitative research.Through this paper, the reader should be able to receive a basic understanding of the characteristics of a qualitative problem statement and purpose statement; formulation of qualitative research questions; and qualitative data collection and analysis procedures. Characteristics of a Qualitative Problem Statement According to Leedy & Ormrod (2010), â€Å"qualitative researchers often formulate general research problems, and ask only general questions about the phenomenon they are studying† (p. 136).By taking this approach, the problem statement in a qualitative study may come across somewhat vague. The problem statement will attempt to be as direct as possible, and will hopefully detail why the researcher selected qualitative over quantitative research. However, the fascinating thing about qualitative studies is there is always room to evolve and further develop the study based on the information and data collected (Rubin, 2007, Leedy & Ormro d, 2010). The problem statement guides the researcher’s interest from the stage of curiosity to the stage of being a specific statement.The problem statement will also explain why the researcher feels their particular topic is important and what has already been researched in this particular area (Rubin, 2007). Characteristics of a Qualitative Purpose Statement The purpose statement of a qualitative research study, much like that of quantitative studies, gives an account of the purpose or intention of the study (Jenkins, 2009). The purpose statement is specific and addresses some information gaps that may exist in what is currently known from previous studies (Merriam, 2002).Researchers may often time take on a study of a phenomenon merely because this is not an abundance of research material about the phenomenon (Merriam, 2002). This can lead to the researcher having the ability to build his or her hypothesis or theory as information is gathered. However, the purpose stateme nt will need to identify the data collection methods chosen, and reveal the possible research questions that will be explored. Formulation of Qualitative Research Questions When trying to determine the research questions that will need to be asked, the researcher must understand what or whom, he or she is trying to research.A means to make this determination, the researcher can select a sample from which he or she believes to be the most informative and beneficial to the research (Leedy & Ormrod, 2010). This process is called a purposive or purposeful sample. When making a sample selection, the researcher must also make a determination of what the criteria of the sample will be; for example male or female; certain ages, ethnicity or heights; certain occupations; etc. Once the sample size and criteria is determined, the researcher will then be able to develop questions that can be posed to the sample group to get the information needed for the study.Data Collection and Analysis T he areas of data collection and analysis go hand and hand. In order to analyze the data, the researcher must first collect the data. According to Leedy & Ormrod, 2010, â€Å"there are three major sources of data for qualitative studies – interviews, observations, and documents† (p. 23). If is up to the researcher to determine what process of research is best for the study he or she is conducting. There are times when only one method is used, but then there are times when more than one method is used. However, the researcher may identify his or her primary method (Rubin, 2007).It is also possible to utilize the internet and worldwide web to collect information for the study also. After the data is collected, the researcher must be able to analyze the data. The truth is the data analysis is usually simultaneous with the data collection stage (Rubin, 2007). From the time the first interview takes place or observation begins, the researcher should already be analyzing what he or she has learned. By doing so, the researcher can eliminate the possibility of being overwhelmed with information at the conclusion of the data collection process.While analyzing, the information collected, the researcher can break up what he or she learns into categories (Leedy & Ormrod, 2010). The use of these categories will help identify any patterns of behavior or occurrence that may exist. References Jenkins, L. (2009). Fundamentals of quantitative research: Considerations in research methodology. Retrieved from the website: www. academicwriting. suite101. com on July 18, 2010. Leedy, P. and Ormrod, E. (2010). Practical research: Planning and design, 9ed. Merrill. Pearson Education. Merriam, S. B. (2002).Introduction to qualitative research. San Francisco: Jossey-Bass. Rubin, A. (2007). Practitioner’s guide to using research for evidence-based practice. New York: Wiley Fundamentals of Qualitative Research Part 2 Based upon Prospectus II * How does the prob lem statement align with the approach communicated in the purpose section? The problem statement aligned with the outlined approach. The problem was determined to be that qualified teachers are turning down jobs at low performing schools. The approach was to take surveys and interviews to find out why this is occurring. How does the purpose of the study inform the way in which the research questions are written? The purpose statement tells that the researcher will use in-depth open-ended interviews and questionnaires given to 100 current teachers, who have at least turned down employment at one low performing school.Do the research questions adequately address the problem as detailed by the researcher? Why or why not? In my opinion, the research question shown, while pertinent to the outcome, seems a little vague. Perhaps, if there was one than one research question posed, there may have been a little more clarity. Does the wording of the purpose statement and research question sugg est the methodology used in the study? How? Yes, the wording in the purpose statement and research question suggest the methodology used in the study. In the purpose statement, it begins with in this qualitative study†¦ That is telling the reader, this is definitely going to be a qualitative research study. In the research question, there is a lot of implication as to what and why. Typically, who, what, why and how are signs that the study is going to be centered on qualitative research methodology.Does the methodology employed adequately address all aspects of the problem detailed by the researcher? Why or Why not? The use of interviews and questionnaires seemingly will produce the results the researcher is looking for. * Do all elements of the project’s design work together in a cohesive and logical manner? Why or Why not? Yes, the components presented for this project, did work together in a cohesive and logical manner. The information flowed well, and was very easy t o read and understand what the project was focusing on, and how the researcher planned to get to that point.

The Effects Of Air Pollution On Infant Health - 1468 Words

The article asks the impact that air pollution has on infant health. The authors used data from New Jersey in the 1990s as the focus case to explore the answer to the question. This question is important because air pollution could have inflicted irreversible changes to the health and well-being of the next generation. The long-term changes to health could have important implications to the future of the world. Xing and Kolstad conducted a study to determine the relationship between the laxities of the implementation of a country s environmental regulations to foreign investment attractiveness. Indeed, laxity of environmental regulations significantly determines the level of FDI from the US. This implies that an economic incentive for pollution exists. The presence of an economic incentive can drive an activity with less regard for other aspects of life such as health. The diffusion of air pollution could imperil the health of the population including those of infants. The impact on infants could be more persistent throughout their life because their exposure happens during their developmental stages. The study by Currie et al. contributes a recommendation pertaining to automobile emissions based on the significant negative relationship between health and magnitude of exposure to carbon monoxide. The paper answers the question using a combination of statistical models to generate, simulate, process, and analyze data. TheShow MoreRelatedAir Pollution Atlanta Using The Galileo Database991 Words   |  4 PagesResearching the topic of air pollution Atlanta using the Galileo database was easy because there are several filters to narrow down the search. Furthermore, the database contains several non-periodical and peer-reviewed articles related to the topic. Using the criteria outlined above, the research selected two peer-reviewed articles from reliable academic sources. The criteria were reliable in selecting six peer-reviewed articles that covered the topic of air pollution in Atlanta comprehensivelyRead MoreThe Effects Of Air Pollution On Human Health850 Words   |  4 Pagesincreasing, so does pollution. The debate associated with this contamination on the environment has to do with how much should be done to stop pollution, and whether or not this is a serious enough issue to be concerned with. Well, this issue should disturb people. The most frightening point about it is that these poisonous impurities infect the Earth in multiple forms, including air pollution and water pollution. The value of Earth is incomparable, and the presence of pollution devaluing it needsRead MoreThe Effects Of Air Pollution On Reproductive Health1376 Words   |  6 Pagesas air pollution, pesticides and mercury, as well as tobacco, alcohol and drugs are reported as having environmental and subjective teratogenic properties. Airborne particle matter small enough to penetrate human respiratory tracts are referred to as air pollutants; environmental teratogens. â€Å"The bulk of all air pollution research target reproductive health has been conducted only in the past decade. Recently this research has begun to focus on one specific source of modern-day air pollution- trafficRead MoreEssay On Vlbw Infants1178 Words   |  5 Pagesoutcomes in LBW infants was found, multiple cohort studies performed give insight into the epidemiology of these outcomes. A study done by Litt et al. (2012) following 181 VLBW infants (birth cohort 1992-1995) into adolescence found a prevalence of neurosensory disorders including cerebral palsy, blindness, and deafness equal to 17%, compared to 0% of the 115 NBW children followed. Similarly, Wilson-Costello et al. (2007) found a prevalence of 23% for neurosensory disorders among 749 LBW infants from a similarRead MoreThe Effects Of Air Pollution On Plants, Animals, And Structure s951 Words   |  4 PagesDescriptive Analysis: Air Pollution in California Holly Torres California Baptist University November 11, 2015 Background Information Air pollution has adverse effects on plants, animals, human beings, and structures; air pollution is caused by the introduction of foreign elements, fumes, and other impurities in the air. Over time, air pollution has been a major health problem caused by both human and natural causes. As the years advance, air pollution has become an issue of concern throughoutRead MoreSouth Africa: The Vaal Triangle1210 Words   |  5 PagesVecor, Lethabo, Metso Minerals, Merisol Industries, Nampak, Ceramic Industries, Omnia, Rand Water, Tongaat Hullett Starch, Glen Douglas Mine, Premier Foods, Sasol Technologies, Samancor, Sasol, Sud Chemie, AK Stoneguards, Anglo American Coal, Afrox, Air Products, Cape Gate, Dow Plastics, Ucar, Group Five, Karan Beef, Monier, Vereeniging Refractories, DCD-Dorbyl Heavy Eng. and ArcelorMittal. Industry Sector Coal is the main minerals found in the Vaal Triangle and is the reason why there is industrialRead MoreFossil Fuels And Their Impact On The Environment862 Words   |  4 Pagesfossil fuels being deposited into the air should be controlled. Not only do fossil fuels pose a threat to the environment, but also to human health. The problem is not only noticeable in the depletion of human health, but also in the air, water, and land. Emissions are a concerning contribution to other problems such as global warming and greenhouse gases as well. One of the major factors of fossil fuels are vehicles. Vehicles emit harmful gases into the air such as particulate matter, hydrocarbonsRead MoreThe Effects Of Air Pollution On Our Lives1304 Words   |  6 PagesDuring the recent years, air pollution has been the main cause of health problems in this society. Air pollution has caused so many health related sickness to the life we live in now. Air pollution has brought in high increases of poisonous gases that impact the weather by global warming, and the air we breathe. As we breathe this toxic air we get in the same chemicals that are mostly found in cigarettes. Some people could get many diseases breathing this kind of air today, because the cigarettesRead MoreHealth and social care unit 12 p3 p41643 Words   |  7 Pagesdifferent patterns of ill health and who and how they are monitored. I will also try to explain different factors that affect our health, not only now but I will try to discuss how different factors fight effec t our health in the future, I will then evaluate the influence of the government have on factors that affect ill health. There are many ways but I’m going to talk about four of them which are ways we monitor health in the UK these are†¦. Public health England Public health England is an organisationRead MoreEssay On Air Pollution1677 Words   |  7 Pages Global Article Analysis 3: Air Pollution There are multiple environmental issues that exist and are constantly harming the planet. Many of these issues have effects that are unique to certain countries, or even effects that are similar to other countries. Overall, these issues can be similar or dissimilar in multiple aspects, such as the biological, physical, and cultural perspectives. The causes and effects, problem severity, citizen perceptions, and proposed solutions and efforts to repair these