Input and Output Devices Essay Example

Input and Output Devices Essay 1. Keyboards:Ad- Data can be entered quickly.- Most pcs come with a keyboard.Dis- It is easy to make mistakes when using a keyboard.- Hard to enter some data e.g. details of diagrams and pictures etc.2. Mouse:Ad- It is easier to move stuff around with a mouse than using the arrow keys on the keyboard.- Generally easy to use.- Its often faster to use a mouse of getting the tasks you want to start.Dis- They can stop functioning correctly if not cleaned and looked after properly.- People new to pcs can find it difficult to control the pointer on the monitor.3. Touchpad:A touchpad has all the same advantages as a mouse except it doesnt have the problem of getting dirty.4. Joystick:Ad- Games often take input from a joystick.- There is an immediate feel of direction due to the movement of the stickDis- There not particularly strong and can break.- Can be hard to use and some other methods are preferred5. Digital Camera:Ad- there is no expensive developing costs.- You can edit, enhance or e nlarge the pictures.- Dis- they are generally more expensive than ordinary cameras.- There not as convenient.6. Scanner:Ad- Any image can be converted from paper into digital format and later enhanced and used in other computer documents.Dis- Images can take up a lot of memory space.7. Magnetic stripe reader:Ad- Magnetic strips are built into many plastic cards such as cheque guarantee cards, cash-point cards and personal identity cards.- The magnetic strip on the back of the card can hold the personal details of the card owner and, with the necessary PIN, will allow access to secure information e.g. bank account details. Data stored on the strip is scanned and input into a computer system by a reader.Dis- they can get damaged.- Ordinary equipment can read but not change the data.8. Microphone:Ad- you can add your own recordings to presentations or emails etc.- People with a range of disabilities can use it for voice recognition and many appliances that can be used by voice control. Dis- it can become distorted when background noise is present.- Sound sampling often produces very large data files.8. MIDI:Ad- you can have a wide range of editing tools on the pc e.g. tune speed instrument etc.- The data is very compact.Dis- a musician is required to play the instrument to input in to the pc.- The main disadvantage is that it has a limited specialist use.9. Laser printer:Ad- produces a very high quality output.- are very quiet and very fastDis- quite expensive to buy.10. Inkjet printer:Ad- is cheaper to buy, offering black and white or colour printing with reduced levels of quality and speed.Dis- they are slower than laser printers.- Can dry out if left for long.- Expensive to change cartridges11. dot-matrix printers.Ad- low running costs and are cheap to buy.- Offer a cheap reliable method of getting a second copy of a printout.Dis- They are comparatively noisy and low quality- They are slow.12. Plotter:Ad- A plotter can be used to produce high quality, accurate, A3 size or bigger drawings. They are usually used for Computer Aided Design (CAD) and Computer Aided Manufacture (CAM) applications such as printing out plans for houses or car parts.-Dis- they are slower than printers.- Often more expensive to buy than printers.- Not suitable for text although it can be produced.- limit to amount of detail.

SAN essays

SAN essays Topic: SAN implementation over Gigabit Ethernet A storage area network (SAN) is a dedicated, centrally managed, secure information infrastructure, which enables any-to-any interconnection of servers and storage systems. A SAN can be configured to provide a nearly infinite pool of storage that you can grow and move between servers, as they need it. The storage can be added to and removed without requiring the server to be rebooted. The services provided by the server continue to operate without interruption. The primary purpose for implementing a SAN is to provide a large storage pool that multiple hosts could access. Common storage configurations involve direct attachment of storage to a host. This storage is only available for use by that host. If there were another host that needed storage, you would need to buy additional storage to install on that host. The host with excess capacity would not be able to share its storage with another host. In a SAN, all networked devices share storage capacity as peer resources; they are not the exclusive property of any one server. You can use a SAN to connect servers to storage, Servers to each other, and storage to storage through hubs or switches. A SAN carries only I/O traffic between servers and doesnt carry any general-purpose traffic such as e-mail. Storage area networks remove data traffic, like backup processes, from the production network giving IT managers a strategic way to improve system performance and application availability. As SAN technology develops, it is growing beyond the use of any one kind of technology. A SAN can be configured to use a number of protocols such as IP or Fiber Channel over a network medium like Ethernet or ATM. Fiber Channel over Ethernet supports up to 1.06 Mbps. Emerging standards that are still being defined include Gigabyte System Network (GSN) which promises full-duplex 6.4 Mbps error free (SGI Networks). Storage area networks im...

Patient Safety and Medication Administration in Nursing Research Paper

Patient Safety and Medication Administration in Nursing - Research Paper Example The understanding that is developed is that in order for a nurse to avoid medication errors, the nurse ought to ensure that whatever medication is being administered is being given in the right format (Elliott M and Liu Y. Zhang, Patel & Johnson believed that nurses must ensure that all these right procedures are followed but Conrad et al. (2010, p. 141) on the other hand stated that it may not all medications that would have to go through all the 9 rights but at least in all cases, 5 of these should be used. Reflecting on the 9 rights, Palmieri et al. (2009, p. 36) noted that the 9 rights have been made to cover aspects of medication, which when ignored, can lead to serious errors with the administration. To have a better understanding of how the 9 rights helps to prevent or minimize errors, Elliott M1, Liu Y. stated that one may simply turn the ‘right’ to ‘wrong’ and know the effect that a refusal to abide by the procedures can bring. Another important int ervention that has been noted to be very effective with the minimization of errors is the organization of medications within the medication room (Alldred et al. 2008, 320). In order jurisdiction, this is referred to as sorting, labeling, or nomenclature (Alldred et al. 2008, 321). Nurses have been noted to make the Accidental mistake of confusing the labels of some medical products for others. Because of this when there is a mixture of drugs with similar packages, the chances that there will be mix up leading to errors are higher.

An Allegory of Divine Wisdom and the Fine Arts by Paolo de' Matteis & Essay

An Allegory of Divine Wisdom and the Fine Arts by Paolo de' Matteis & Pictura by Frans van Mieris the Elder - Essay Example The essay "An Allegory of Divine Wisdom and the Fine Arts by Paolo de' Matteis & Pictura by Frans van Mieris the Elder" explores paintings by Divine Wisdom, Paolo de' Matteis and Frans van Mieris the Elder. Divine Wisdom is a conglomeration of many subjects to include men, women, angelic beings, and artifacts of a compass and a drawing, clock, laurel wreath, and paddle while Pictura is of a lone woman holding a palette, brushes, and a small plaster sculpture for a model for larger works. Hanging from her neck is a mask on a chain. Divine wisdom suggests a hierarchy of the disciplines where Science is paramount before Painting and Architecture, which may point to the necessity for these two fields of human interest to uphold principles, facts, and knowledge. But these may have to be tempered with Virtue, Time (the clock) and Truth (the unfolding canvass). On the other hand Pictura is said to refer to the Arts and seems to warn of the capacity of art itself to deceive sights through th e art of illusions as suggested by the mask. Both paintings expectedly were influenced by the stylistic characteristics of their period, the masters with whom the painters worked, and the clients of these painters. Paolo trained under Luca Giordano which explains his leanings toward naturalism, a trademark of the Neapolitan school. In his Divine wisdom, he employed the delicate graceful manner (the hand of Science, for example), an influence of a French master, but â€Å"broke into baroque† as exemplified by the rich his work.

Why Obama Won Assignment Example | Topics and Well Written Essays - 2500 words

Why Obama Won - Assignment Example By taking into concern the current situation of this contemporary world, it can be stated that the political parties need to become market-oriented, by recognizing public demands and most importantly, by designing an effective party product. In this similar context, the party product may comprise certain important factors including policies, constitutions, symbols, organizations and ideologies. It has been apparently observed that an effective political marketing imposes significant impacts upon several important aspects which include political decisions, market orientation strategies, online association marketing and media coverage initiatives (Marshment & Rudd, n.d.). Besides, the notion of political marketing is also viewed as a sort of commercial marketing that emphasizes upon forming, preserving as well as improving long-term interrelation with the voters for the purpose of attaining significant success and expected objectives (Shaughnessy, 2001). In addition, an effective polit ical marketing is all about shaping and delivering accurate message to the key audiences in order to obtain considerable success, especially in the political field (Ren Scott Creative Marketing, n.d.). In this discussion, a detailed analysis will be taken into concern regarding how an effective political marketing supported US President Barack Obama succeed in defeating Mitt Romney to earn a second term. Analysis Brand Difference of Obama and Romney Considering the recent changes in the US political environment, it can be stated that it is the democratic brand which mainly differed Obama from Romney who possessed republican brand. A major difference that can be viewed in this regard is that Obama largely supported the ideas as well as the policies based on Democratic Party while conversely, Romney deciphered strong concern towards Republican Party’s theories and concepts. Furthermore, US President Obama, from the very beginning, was observed as much keen towards introducing a s well as developing significant democratic policies concerning international relations, supporting legalization particularly for illegal immigrants and augmenting employment opportunities among others. These quality facets of democratic policies can be viewed as a significant factor which contributed to the success of Obama helping the common people to interpret the policies as mainly formulated for the interests of the nation (Carothers, 2012). This significant aspect, i.e. the democratic brand of Obama might have significantly assisted him to attain success and win for a second term as US President by a large extent. The democratic branding of Obama evolved over the course of the campaign when he included republican idea into his proposal relating to health insurance reform. According to the proposal, a few of the initiatives based on republican ideas have been taken into concern under the guidance of Obama. In this regard, the initiatives included facilitating varying health ins urance premiums on the basis of participation in programs relating to employer wellness, establishing standardized mechanisms to enhance healthcare quality and superior access towards different community based health centers (The White House, n.d.). Conversely, the republican branding of Romney evolved over the course of the campaign when he acclaimed prior to the election that it is possible to mitigate the loss of revenue resulting from tax cuts by eradicating different deductions as well as exemptions, especially for the upper-income individuals of the US. However, a few of the republicans were significantly criticized regarding the viewpoint of Romney regarding the

Racial Profiling

Racial Profiling Racial Profiling Abstract This manuscript will take an in-depth look at racial profiling. Many studies have been conducted on this type of practice and a few of these studies will be observed. Concerns for racial profiling such as racial tax, impacts on minorities, and police citizen partnerships will also be addressed and how it affects the individual, criminal justice field and the community. Some sanctions will also be discussed to find ways on how to combat this practice. Finally the cases of Atwater v. City of Lago Vista and Terry v. Ohio will be compared. Racial Profiling The debate involving racial profiling is been around for many years. There have been many studies of about this issue over the past 20 years. Some researchers believe that racial profiling does not have a place in the criminal justice system. Although others disagree with this claim and believe that it does have a place in the criminal justice field and does stop crime. This manuscript will take an in-depth look at the constitutional issues, correctional initiatives, and compare two cases dealing with racial profiling. Literature Review Higgins, Gabbidon and Vito (2009) conduct a study focusing on the public opinion on racial profiling during traffic stops. They collected data from Gallup there runs a poll every few years on the perception of whites and minorities on several issues. The sample size was 2,000 randomly selected Americans of many different races and ethnic backgrounds. Dependent variables were tested by using two different questions that include the following: â€Å"is it ever justifiable for police use racial or ethnic profiling, and if they felt that racial profiling was widespread when motorists are stop on roads and highways† (Higgins, Gabbidon, and Vito, 2009). The independent variables were tested by finding out what the relationship between each race was. The demographics for the study found that 47% of the survey respondents were male with an average income of $50,000 to $75,000. The sample also showed that 37% were black and 22% Hispanic (Higgins, Gabbidon, and Vito 2009). The results o f this study showed that there were mixed results when dealing with race relations and safety concerns. The researchers show that race relations had an influence on racial profiling, while safety did not. A study conducted by Parker, McDonald, Alpert, Smith, and Piquero (2004) focuses on the contextualized examination of racial profiling. This study basically looks at multiple studies conducted by many other researchers on the topic of racial profile. The authors conclude that community level characteristics and their relationship to racial profiling are unknown. They also argue that the clarity and meaning of racial profiling is lacking (Parker et al., 2004). The study also shows that more analysis should be done to see the relationship between police discretion and racial profiling. Kim (2004) examines how religious individuals feel towards racial profiling. The researcher collected data from the ABC News/The Washington Post Afghanistan Attack Poll #2. The sample size consisted of 1,009 adult participants ranging from the ages of 18 and older and living in the United States (Kim, 2004). In a survey that was conducted the participants were asked their religious identification, their race, and feelings about racial profiling. The researcher found that religious Americans are more likely to support the racial profiling of Muslims or people Arab descent. The author believes that this is true because of the public safety because of the events that occurred on September 11, 2001. Ramirez, Hoopes, and Quinlan (2003) also look at racial profiling in this definition after the events that occurred on September 11, 2001. They first take a look at the case of Wilkins v. Maryland State Police. This case was brought up by the American Civil Liberties Union (ACLU) about statistics of stops done on Maryland Turnpike. It showed a big contrast in the amount driver searched by the Maryland State police because a study showed that 79.2% were African-American (Ramirez, Hoopes, and Quinlan, 2003). The authors then look at different definitions for the phrase racial profiling of pre-September 11 and post-September 11 and believe that they are not easily understood. They believe that a more distinct definition should be developed for law enforcement officials to use. Oliver (2003) discusses constitutional concerns when dealing with the topic of racial profiling. The author takes a look at Fourth Amendment and how it affects racial profiling. This article takes an in-depth look at Atwater v. City of Lago Vista. The case was brought forth because Gail Atwater felt that she was illegally stopped by police because of a race. This case made its way to the United States Supreme Court and the justices found the officers actions did not violate the Constitution. The majority of five justices said that it did not violate the Fourth Amendment because a warrantless arrest is legal for minor criminal offenses (Oliver, 2003). The author believes that this case reshaped the fourth amendment of the United States Constitution. In an article written by Simmons (2011) racial profiling is examined for some definitive solutions. The author discusses some of the harms that racial profiling has on the victims. The researcher believes that racial profiling imposes a racial tax on individuals and groups that are subject to this practice (Simmons, 2011). Other harms that the author discusses are the impacts on monitory communities, and impacts on police citizen partnerships (Simmons, 2011). The author also discusses how there have been some push for legislation to help stop racial profiling, but the legislation failed to pass. The researcher believes the more studies need to be performed to help resolve the issue of racial profiling. Smith and Alpert (2002) discuss how the use of social sciences can help the court system resolve the issues of racial profiling. The authors also discuss some of constitutional constraints when dealing with racial profiling in the legal system. The researchers state â€Å"That most stops done by law enforcement officers based solely on race are generally found unconstitutional in the courts† (Smith and Alpert, 2002). The authors also discuss some legal remedies racial profiling. They claim that this type of practice done by law enforcement officers is a violation of the Equal Protection Clause of the United States Constitution. Smith and Alpert (2002) also discuss how the fourth amendment is rarely applicable in cases dealing with racial profiling because of the Supreme Courts decision of Whren v. United States. They conclude by stating the most court cases that deal with racial profiling ultimately fail because the plaintiffs do not have enough solid research. Durlauf (2006) wrote an article discussing some of the problems of racial profiling in traffic stops. The author shows that there been no benefits identified for the use of racial profile. He believes that the harm to the individuals is greater than the benefits for the use of this practice. He concludes by stating that he rejects any form profiling in traffic stops as a public policy (Durlauf, 2006). In a study conducted by Glaser (2006) the author says is difficult to test the effects of racial profiling because the data is difficult to secure. The researcher during his study simulates racial profiling to see how it affects two different groups. In his first scenario the two groups had the same incarceration rate of 10%. In this scenario no profiling is done in the results come out say the same for both groups. In the next scenario the researcher changes criminality rate for one group to 25% and lowers the second group to only 6.25% (Glaser, 2006). The researcher shows when this occurs and profiling is put into the equation that the group with a higher criminality rate is five times more likely to be incarcerated than the other group. Risse and Zeckhauser (2004) published an article looking at the moral aspect of racial profiling and how to eliminate from ones thoughts of the subject. The authors give a brief history and some conflicting definitions of the phrase racial profiling. They believe that some of the definitions that other researchers use can be confusing and hard to understand. Risse and Zeckhauser (2004) shows it is hard to prove racial profiling because law enforcement use the defense of suspicious activity not solely stopping somebody because of the race. The researchers believe that racial profiling can be used in some cases for the better public safety. The authors conclude that they do know that racial profiling does hurt the African American community, but also believe that it does lower crime rates. Discussion Constitution and Law The topic of racial profiling has constitutional and criminal law issues need to be addressed. Oliver (2003) identifies the major constitutional issues the Fourth Amendment and the Fourteenth Amendment. The fourth amendment can be summarized as illegal search and seizure. In the case of Atwater v. City of Lago Vista the Supreme Court role that the police officers stop on this Atwater did not violate the fourth amendment because for minor criminal offenses a warrantless arrest is permitted (Oliver, 2003). The 14th amendment is known as the Equal Protection Clause and was developed for the protection of individuals no matter what their race or ethnic background was. This is been an issue because the 14th amendment has not been very adequate to help the victims of racial profiling. The reason for this is because racial profiling is very hard to prove. Another issue when dealing with racial profiling is many plaintiffs lose cases dealing with racial profiling because they have not gather ed enough solid research (Smith and Alpert, 2002). Concerns Many concerns can arise when dealing with racial profiling because they can affect many people. Simmons (2011) discusses three of these concerns and they are as follows: imposes a racial tax, impacts minority communities, and impacts police citizen partnerships. When dealing with racial profiling the so-called â€Å"racial tax† many people in the community can suffer psychological and emotional harms. This can be devastating to the individual because they can make them feel unwanted in the community. The community also suffers because word can spread the police officers are profiling a certain race and then trust the criminal justice field falls. The concern that racial profiling has impacts on minority communities can be justified for some of the same reasons stated above. This is also concerned because the practice of racial profiling may lead to higher incarceration rates among the community (Simmons, 2011). This can be harmful to the criminal justice field for some of the same reasons stated above and can have an impact on correctional facilities because it may cause more overcrowding. Racial profiling impacts police citizen partnerships because the trust of the police falls to the individual and the community as a whole. Another concern the may arise with the topic of racial profiling can be the issue of airport security. The impact of not using racial profiling on certain races can have a huge impact on the communities at large. This author believes that racial profiling is wrong in most cases but when it comes to protecting large groups of people should be used. If an individual board the plane with a bomb and was not racial profile this could have an impact on the criminal justice system as well. The country as a whole may feel that the criminal justice system do not do their job properly in stopping such an attack. One more concern could be the racial profiling of the teacher at a University. This can impact the victim because it makes them feel not welcomed at the institution because of the race and ethnic background. If students do not trust the teacher just because of their race, this can have an impact on the school community because lawsuits may arise. These lawsuits in turn will have an impact on the criminal justice field is a may tie up the courts. Initiatives Some initiative should be put into place to stop the practice of racial profiling. Most of the public believes the racial profiling should not be used in any shape or form. In order to combat this some sort of punishments may need to be put in place to stop profiling. One way to combat this practice could be to impose community service on individuals who commit racial profiling. This would not be a hard punishment to impose because it could help the community as a whole. Some logistical issues would be to find the appropriate project for the individual to work on. This project could be in the minority community that the individual committed racial profiling against. A second initiative to help stop the practice of racial profiling is to impose fines. This would be easy to apply once the law was set into place. One of the issues that may occur though, is setting the correct amount of money they should be fined against the individual who committed racial profiling. A third and final initiative could be shaming. This may be harder to implement because it is not well-known to the community. One of the logistical issues that may arise is getting adults to cooperate with the initiative. Most adults are not going to stand on the side of the road holding a sign that says â€Å"Im a racial profiler†. These types’ individuals would rather pay the fine first. Another issue is to find the appropriate place to hold shaming, such as a community square or popular mall. This author believes that if shaming should occur in the community that the individual committed racial profiling. Cases There are many cases that involve racial profiling, but Atwater v. City of Largo Vista is one that has been studied many times. Gail Atwater was driving a pickup truck and was pulled over due to what the officer said was a seatbelt violation (Oliver, 2003). This is brought forth to the Supreme Court as a racial profiling case because a few weeks before the same officer pulled over Gail Atwater for the same violation. The issue was that all the passengers were belted in properly. Although the seatbelt violation on how to find $50, the Atwater family felt that they were racially profiled. The Supreme Court later ruled that the case did not involve racial profiling because warrantless arrests are permitted and minor offenses (Oliver, 2003). In a similar case of Terry v. Ohio police officer stopped three men that he thought and committed the crime just moments before. When the officer asked what their name was, they just kind of mumbled. The officer then proceeded to search the men and found a weapon on one of them in an inside pocket. Two the men were charged with carrying a concealed weapon and taken to the police station. The defense for the two men one of the charges dropped because of illegal search and seizure. This case made to the Supreme Court and later developed a Terry stop. This was the case that did not involve racial profiling but involved reasonable suspicion. The outcomes of these two trials did affect individuals because in one case someone was fined, and in the other they were put in jail. Conclusion As discussed throughout this manuscript there are many problems and concerns that arise when dealing with racial profiling. This type of practice is still used very hard to prove. The concerns that were mentioned previously are one of the reasons that racial profiling should be stopped. This author believes that more research needs to be done in order to find the right way to combat this practice. References Durlauf, S., (2006). Assessing racial profiling. The Economic Journal. 116. Glaser, J., (2006). The efficacy and effect of racial profiling: a mathematical simulation approach. Journal of Policy Analysis Management. 5(2), 395-416. Higgins, G., Gabbidon, S., Vito, G., (2009). Exploring the influence of race relations in public safety concerns on public support for racial profiling during traffic stops. International Journal of Police Science Management. 12(1). 12-22. Kim, P., (2004). Conditional morality? The American Behavioral Scientist. 47(7), 879-895. Oliver, S., (2003). The role profiling American society: racial profiling: Atwater v. City of Largo Vista: the disappearing fourth amendment and its impacts on racial profiling. Journal of Law and Social Challenges. 5(1). Parker, K., Macdonald, J., Alpert, G., Smith, M., Piquero, A., (2004). A contextual study of racial profiling. The American Behavioral Scientist. 47(7), 943-962. Ramirez, D., Hoopes, J., Quinlan, t., (2003). Define racial profiling in a post September 11 world. The American Civil Law Review. 40(3), 1195-1233 Risse, M., Zeckhauser, R., (2004). Racial profling. Philosophy and Public Affairs. 32(2), 131- 170. Smith, M., Alpert G., (2002). Searching for direction: courts, social science, in the adjudication of racial profiling claims. Justice Quarterly. 19(4). 673-703 Simmons, K., (2011). Beginning to end racial profiling: definitive solutions to an elusive problem. Washiington and Lee Journal of Civil Rights and Social Justive. 18(25).

The Left Membrane Vs. The Right Membrane :: essays papers

THE LEFT MEMBRANE VS. THE RIGHT MEMBRANE â€Å"Most people equate learning with studying, but psychologists define it more broadly, as the process by which experience or practice results in a relatively permanent change in behavior or potential behavior. This definition certainly encompasses academic learning, but it covers many other forms of learning as well: learning to turn off lights when we leave a room, learning which way to put the key into the front door lock, learning how to avoid falling down on skis, learning how to dance† (Morris & Maistro, 185). The largest part of the human brain is the cerebrum. It is divided into two haves, or hemispheres, each of which controls is opposite half of the body, The hemispheres are connected by a band of some three hundred million nerve cell fibers called the corpus callosum. Covering each hemisphere is a one-eighth-inch-thick, intricately folded layer of nerve cells called the cortex. The cortex first appeared in our ancestors about two hundred million years ago, and it is what makes us uniquely human. Because of it, we are to organize, remember, communicate, understand, appreciate, and create. The brain regulates all bodily functions. It controls our most primitive behavior; eating, sleeping, keeping warm, it is responsible for our most sophisticated activities; the creation of civilization, of music, art, science, and language. Our hopes, thoughts, emotions, and personality are all lodged-somewhere-inside there. â€Å"After thousands of scientist have studied it for centuries, the only word to describe it remains Amazing† (Ornstein & Thompson, 15). In normal people, the switch with manic depression, allows either the left or right hemisphere to be dominant during different mental tasks, with the two sides constantly taking turns. In people with manic depression, one hemisphere becomes locked into a dominant position in periods of depression while the other hemisphere is locked at times of mania. â€Å"The notion that the human brain has two halves and that the left side is associated with logical, analytical thinking while the right side is more intuitive, emotional and creative was popularized about 20 years ago, and soon became received wisdom about how the brain works† (Castro). â€Å"The new theories are also appealing to many experts because they take on a question that has divided researchers for decades. Do people have one overarching mind that spans the two hemispheres? Or are they born with two separate minds -- one on the left and one on the right -- which operate so seamlessly that the person simply does not notice that there are two?