Computers :: essays research papers

Computers Computer are electronic device that can receive a set of instructions, or program, and then carry out a program by performing calculations on numbered data or by compiling and correlating other forms of information. The old world of technology could not believe about the making of computers. Different types and sizes of computers find uses throughout our world in the handling of data including secret governmental files and making banking transactions to private household accounts. Computers have opened up a new world in manufacturing through the developments of automation, and they have made modern communication systems. They are great tools in almost everything you want to do research and applied technology, including constructing models of the universe to producing tomorrow's weather reports, and their use has in itself opened up new areas of development. Database services and computer networks make available a great variety of information sources. The same new designs also make possible ideas of privacy and of restricted information sources, but computer crime has become a very important risk that society must face if it would enjoy the benefits of modern technology. Two main types of computers are in use today, analog and digital, although the term computer is often used to mean only the digital type. Everything that a digital computer does is based on one operation the ability to determine if a switch, or gate is open or closed. That is, the computer can recognize only two states in any of its microscopic circuits on or off, high voltage or low voltage, or—in the case of numbers—0 or 1. The speed at which the computer performs this simple act, however, is what makes it a marvel of modern technology. Computer speeds are measured in megaHertz, or millions of cycles per second. A computer with a "clock speed" of 10 mHz—a fairly representative speed for a microcomputer—is capable of executing 10 million discrete operations each second. Business microcomputers can perform 15 to 40 million operations per second, and supercomputers used in research and defense applications attain speeds of billions of cycles per second. Digital computer speed and calculating power are further enhanced by the amount of data handled during each cycle. If a computer checks only one switch at a time, that switch can represent only two commands or numbers; thus ON would symbolize one operation or number, and OFF would symbolize another. By checking groups of switches linked as a unit, however, the computer increases the number of operations it can recognize at each cycle. The first adding machine, a precursor of the digital computer, was

Physical Development in Middle Adulthood Paper Essay

As the human body ages and reaches a point where it is no longer growing and changing due to hormones, it slowly starts to change in other ways. Age starts to take its toll much earlier on the body than most people think. Physical, mental and emotional changes are being made in the middle parts of an adult’s life. The midpoint of a person’s life is a period from age 35 to 64, and it is referred to as middle adulthood. Webster defines middle as â€Å"equal distance from beginning to the end† and the word adult is a person who is â€Å"fully grown or developed† (Dictionary 2010). Combining these words is like saying that an individual is half way through with his/her life. Many individuals have achieved happiness by this point in their lives. However, there is some who feel like they are closer to death without accomplishing anything. Middle adulthood brings about many changes and stresses to deal with daily. How an individual handles these issues determines if he or she achieves total happiness with their self. Middle adulthood is the time in life where individuals experience extreme amounts of responsibilities that could include the caring of aging parents or children (Dacey et al., 2009). Menopause is a woman’s first sign of aging that usually starts with a few years of turning 50 (Myers, 2008). Menopause is a very strenuous time in a woman’s life, with so many hormonal changes that can upset a woman’s normal balance of life. Physical symptoms of menopause are mood swings, emotional outbursts, hot flashes, and insomnia. There are available medications to help with the effects that occur during menopause. Health problems that evoke during these periods are Hypertension, asthma, arthritis, rheumatism and the metabolism starts to slow down. With hypertension (high blood pressure) affects 40% of adults in the United States being more prevalent among African Americans and poor people (Papalia et al., 2007). This disorder leads to individuals having heart attacks and strokes. Having blood pressures screenings can detect this disorder, and it can be treated effectively with medication. The three leading causes of death for individuals between the ages of 35 and 54 are cancer being number one, 2nd heart disease, and 3rd accidents. Women’s hormonal changes are known as menopause and are a decrease in the production  of estrogen. Male climacteric is a decrease in sex hormones. Both middle age men and women go through hormonal changes and physical developments. Both genders might expectance emotions of anxiety, nervousness, fatigue and decrease in sexual desires. As both genders began get older, their hair begins to get thinner and gray and get start getting wrinkles. While this makes most men appear attractive, it is viewed as unattractiveness or over the hill for women. According to Erik Erickson’s stages of psychosocial development Generativity is the stage of middle adulthood the particular age is debatable, some sources identify the period between age 25 to 45, others identify the period between 45 to 65, generativity is particularly characterized by an individual’s turning from self-centered objectives and becoming more interested and concerned with others, including a desire to nurture, care for, inspire and support others, their object can be within their own family or encompass their community and even encompass society as a whole. Middle adulthood is the time when interest shifts from self to others, it is the time of reflection Sexual development progresses throughout adulthood. Several elements such as pregnancy, chronic illness, stress, and the usual aging process affect adult sexuality. Adult men and women go through many physical and psychological changes as they age that can affect sexual relations and sexuality. In general, health and wellness has a significant effect on sexual development in middle aged men and women. Adult men and women that go through a decrease in sexual activity could profit from many treatments. Such treatments include hormone replacement therapy (HRT), selective enzyme inhibitors (Cialis, Viagra), 5-alpha reductase inhibitors (Proscar, Adodant), and sex therapy. Adult men normally have a decrease in testosterone production after the age of 25 or so. Testosterone levels are lower which can lead to a lack of sexual passion and complications performing erection. Sexual function in men who are middle age and older is very common. Adult women, typically between the ages of 45 and 60, menstrual periods stop, this is called menopause, and the ovaries stop generating the hormone estrogen. Menopause affects sexuality which can cause vaginal dryness and tenderness and reduces sexual cravings. Eating a proper diet, avoiding smoking and getting regular exercise allows many adults to continue sexual  desires and relationships during the course of their life cycle. Sexual partners that uphold open communication along with proper treatment of medical conditions can allow older adults keep affection part of life into older age. The changes in life can be many, and can often be terrifying for an adult to go through, not to mention stressful. Many adults going through this period tend to find outlets and ways to go about dealing with these changes, often referred to as a â€Å"mid-life crisis†, which allow them to put off feeling like their lives are already over, or allow them to come to terms with growing older and allowing them to feel more at peace with it. Conclusively, it is noted in many places that â€Å"Old is beautiful† or â€Å"40 is the new 20†, so perhaps people have found healthy outlets to allow them to be happier with being older. Reference: Sexuality in Adulthood. Retrieved from: blue.utb.edu

Global Climate Changes Happen - 1630 Words

Global climate changes happen. This however is not always the best thing though. When some people think of the terms â€Å"global climate change†, they think of just a temperature change and not always the bad things that can happen to our environment and living things as well. There are many things that cause the climate changes. I want to talk about three reasons that climate change happens. First, you have the â€Å"greenhouse effect†, which is warm air being trapped in the lower atmosphere. Secondly, the burning of fossil fuels, such as coal and oil, increases carbon dioxide in the atmosphere. The third issue is deforestation, or the clearing of land and burning of forests. How are all three of these issues impacting our environment? The Earth is becoming warmer which can hurt certain places and animals who cannot adapt to the warmer weather. With more heat comes more evaporation causing the sea levels to rise. Also, farms are being hurt to not being able to successfully grow a lot of the things that they are used to growing with their climate. Some crops cannot live in warmer temperatures but instead need cooler climates. While the Earth is heating up, these crops are having a lot of difficulty surviving. I feel that the United States could be doing a lot more to help prevent the climate changes. Producing oil and coal to better our economy seems to be the main focus rather than making the changes necessary to take some effective action. Europe has more interestShow MoreRelatedHow Can An Injustice Be Changed?1186 Words   |  5 Pagesinjustice be changed? First, one must have the knowledge of the injustice. Global climate change is an injustice because it brings damage and harm to animal, human, and environmental habitats. â€Å"Global climate change affects Earth’s capacity to sustain life†. Global climate change refers to the alteration of the Earth’s atmosphere temperature (Glossary). Utilitarianism is a theory to find alternatives to combat global climate change. Utilitarianism focuses on the positives influences that come to the greatestRead MoreThe Effects Of Global Warming On Our Planet s Ecosystem1173 Words   |  5 PagesMother Earth is burning as we speak; humanity has killed our precious Earth. Global-warming is a vicious killer that was created by the humans on this Earth, and there s no way to cure it. We, as humans, have the power to cleanse the Earth, but instead we destroy it. Heat is absorbed by carbon dioxide and greenhouse gases. A greenhouse gas absorbs thermal radiation emitted by the Earth s surface. As the sun s energy reaches the Earth’s surface, some of it is released into space, some is absorbedRead MoreGlobal Warming Is A True?1103 Words   |  5 PagesWhat is global warming? Global warming is a slow increase in the overall climate of the world s atmosphere normally associated with the greenhouse effect caused by increased levels of carbon dioxide and other type of pollutions. Is it real? Scientist every day debate if global warming is a true factor or not. For example, Intergovernmental Panel on Climate Change wrote this on Climate Hot Map, Observational evidence from all continents and most oceans shows that many natural systems are beingRead MoreThe Effects Of Climate Change On The World856 Words   |  4 Pagessustainable place for future generations? Climate change is happening weather we like it or not, what are we going to do? Mahtma Ghandi once said â€Å" you need to be the change you wish to see in the world†. Climate change is causing unbelievably high levels of carbon dioxide , the global economy is estimated to drop by 23 percent by 2100. Our glaciers are melting at an unbelievable pace, Zacharie Isstrom is melting at a pace of 5 billion tons per year. Climate change has been changing for over 650’000Read MoreGlobal Warming And Global Climate Change1139 Words   |  5 Pages The topic of global climate change has been a much debated topic over the years. There is no real scientific consensus on global warming. However, much destruction has happened to the earth that questions the scientific or empirical link between extreme weather and global climate change. There are a lot of events that happens around the globe such as floods, increased precipitation, sea-level rise, and hurricanes that questions the theory of global climate change. Without any clear cut evidenceRead MoreGlobal Warming And The Warming1353 Words   |  6 PagesGlobal Warming With it being the presidential election season the talk of global warming, also known as climate change has come up in conversation more. But should it be associated with whether you are republican or democrat? Global warming should not be rather you â€Å"believe† in because it is a stated fact. The definition by Oxford Dictionary declares that global warming is a gradual increase in the overall temperature of the earth s atmosphere generally attributed to the greenhouse effect causedRead MoreClimate Change And The Quest For Clean Energy1604 Words   |  7 PagesClimate Change and the Quest for Clean Energy Final Exam YALE STUDENT ID: _______________914684600________________________ Part A (select one question to answer): 2. Maurice Strong (the Secretary General of the 1992 Rio Earth Summit) liked to distinguish between â€Å"success† and â€Å"real success† in international agreements. Discuss the 2015 Paris climate change agreement with regard to whether it represents success or real success. Last week at Yale School of Forestry and Environmental Studies,Read MoreGlobal Warming Is Not Only Affecting The Earth1451 Words   |  6 PagesGlobal warming is not only affecting the earth, but it is also affecting many animals at a very alarming rate. One species of animal that has been affected in a major way are seals. The species of seals consist of harp, hooded and ringed seals.The lives of seals are being threatened by the climate change that is happening throughout many arctic, antarctic regions, and other areas of the world. Due to climate change caused by global warming in the arctic and the antarctic regions, rapid ice loss hasRead MoreFacts About Global Warming and Climate Change869 Words   |  4 PagesFacts about Global Warming and Climate Change We know of no other habitable place in the universe comparable to planet earth. But the climate change poses obvious threat to all forms of life in the planet and no living creature is exempted. Extreme and unpredictable weather events and catastrophes are too overwhelming. Sometimes, people may need international aid to stand up. It’s quite alarming how global warming affects the world. Imagine the world’s coolest places, the Arctic and Antarctica withRead MoreThe Consequences And Extinction Of Animals By Climate Change Essay1376 Words   |  6 PagesThe Consequences and the Extinction of Animals By Climate Change â€Å"The warnings about global warming have been extremely clear for a long time. We are facing a global climate crisis. It is deepening. We are entering a period of consequences† (Al Gore). Global warming is a nationwide problem that is affecting people and the environment by the greenhouse gases. Global warming increases the atmospheric temperature. For instance, the solar radiation is reflected by the Earth’s atmosphere. Earth s surface