Computers :: essays research papers

This paper is about the computer. Today computers are used by hundreds of millions of people. There have been many advances in the computer. The computer used to weigh 30 tons and filled warehouse size rooms, but today can be as light as 3 pounds and fit in a persons pocket.There were basically three times the computer was mentioned. One as a mechanical computing device, in about 500 BC The other as a concept in 1833, and the third as the modern day computer in 1946. The first mechanical calculator was called the abacus. The abacus is a is a string of moving beads.The first concept of the modern computer was first outlined in 1833 by the British mathematician Charles Babbage. His outline contained all of todays features in a computer today. Those features are memory, a control unit, and output devices. Even though Babbage worked on the machine for over 40 years he never actual saw it work. The modern computer grew out of intense research efforts mounted during World War II. The military needed faster ballistics calculators, and British cryptographers needed machines to help break the German secret codes.Early as the 1940's the German Inventor, Konrad Zuse, produced the first operational computer. It was used in aircraft and missile designs, but the German government would not let him improve the machine so it never reached its maximum capability. Two engineers called John W. Mauchly and J. Presper Eckert Jr. from the University of Pennsylvania constructed a calculator. Its construction was an enormous feat of engineering. The 30-ton machine was 18 feet high and 80 feet long, and contained 17,468 vacuum tubes linked by 500 miles of wiring. This calculator performed 100,000 operations per second, and its first operational test included calculations that helped determine the feasibility of the hydrogen bomb. Computers were finally made to a smaller size in 1958 by Jack Kilby. He used less expensive silicon chips, this made it possible to cram as many as 10 million components on 1 chip. Another big step in the computer chip was made by American Engineer Marcian E. Hoff. He combined the uses of a computer into 1 tiny silicon chip which he called the microprocessor. This microprocessor was called the Intel 4004. By the mid 1970's the microprocessor or microchip reduced the cost of computers. The first affordable desktop computer designed specifically for personal use was called the Altair 8800 and was sold by Micro Instrumentation Telemetry Systems in 1974.

Narrative essay about Education Essay

Education is the Key to SuccessThe disadvantage of not completing high school is missing the prom, senior day, and graduation. Looking back, as a teenager my judgment was idle toward negativity and peer pressure. I struggled throughout the years without my high school diploma. To pursue higher education, my high school diploma was a necessity. In order to achieve a successful career, education is vital towards my career goals. TransitionAt age 14, my parents moved to a low-income apartment building on the west side of Stamford. I believe this was the worst decision that my parents had made for us. The transition of living in a suburban area in Stamford, moving to the projects was fearful to me. I was the new girl on the block. The girls in this area smoked cigarettes in the hallways, skipped school, shoplifted, and had boyfriends. I attempt to stay away from the girls, due to their negative behaviors. As time went by, I was lonely staying in the house after school. As a result, I frequently invited the girls to my house after school to play. Suddenly, I was sneaking in the staircase with the girls smoking cigarettes, skipping school, shoplifting, and I had my first boyfriend. As time progressed, I had a bad attitude towards school and my parents. I dropped out of school at age 16; ran away from home with my boyfriend, became pregnant at age 17. This was a turning point in my life because I had to grow up q uickly and become mother. EmploymentAfter giving birth to my son, I applied for an overnight stock position for KohlÂ’s. On the job application, it asked, ”do you have a high school diploma?” I checked yes. KohlÂ’s hired me for the night position. I adapted to the late hours, and became friend with my co-workers. I enjoyed displaying the new clothes to the floor at night and dressing the manikins with the new designs. After my 90-day probationary period, there was a call from the store manager he wanted to see me. This was the longest walk down the corridor. My thoughts were racing faster than my heart. I did not have a clue as to what this meeting was going to be about. I knocked on the door and the manager said, “Come in, close the doors and have a seat”. The manager talked about an incident that happen at another store, the manager had to fire this gentleman; he became violent to the manager due to the termination of his employment. The police were called the gentleman was  arrested. Management found out that this employee had a long criminal history of violence. Due to this incident, the company started checking all backgrounds of current employees. After reviewing my background the store manager said, “we have a problem with your application, we checked with the school and you were dishonest on your application ”. He had no other choice but to terminate my employment. I sighed in disbelief, my mouth was very dry and I could not swallow, I stood up from the chair, disappointed, embarrassed with my head held down. I reached out and shook the managers hand. I said, “ You have to do what you have to do: thanks for the opportunity”. When I walked out of the store, I began to cry. I learned from that day forward, to always be truthful no matter what. This incident made me realize how I would struggle if I did not pursue my education. Pursing my DiplomaMy mother at age 60 went to night school to obtain her high school diploma. She laughed at me because she was going to receive her diploma before me. This motivated me to pursue my G.E.D. I was jealous of my mother, yet happy that she was accomplishing this for herself. The beginning of May 1998, I went to the Board of Education and applied for my G.E.D. test, the test was schedule for June. I applied myself, and studied for 30 days for this test. Early that Saturday morning, I was full of anticipation ready for the challenge ahead, the day of my test. I was nervous walking into the building, yet determined to complete and accomplish this rewarding task in my life. I was very excited when I completed my last question on the test. I waited anxiously for the test results by mail. The end of June 1998, my mother handed me a big yellow envelope; I quickly opened the envelope, and pulled out a crisp piece of paper my high school diploma (G.E.D.). After I read my results and found out my grades were above average, I jumped up and down full of happiness. My mother and I received our diplomas that month a celebration was definitely required. In conclusionNevertheless, I missed a great deal of events in high school, I have learned to forgive myself for the mistakes I have made in the past and look towards the future. Never under estimate the lack of education, I am currently attending University of Phoenix to pursue my bachelors. I am determined to complete and accomplish this honorable and rewarding task.  Education is a vital key to success in any career driven environment. When adults look back in their childhood, they can see the mistakes they made because of lack of judgment. This is the reason why parents make the choices and decisions for their children. A child lacks the knowledge and judgment to make healthy decisions. As an adult, we cannot believe some of the things we have done to make obstacles in our lives. The author clearly understands his judgment as a child jeopardized his well- being. Nevertheless, children are responsible for their own actions, and should become leaders instead of followers.

The Black Death And Its Effects On The Middle Ages

The Black Death â€Å"Ring around the rosy, a pocketful of posies, ashes †¦ ashes, we all fall down.† A familiar nursery rhyme that children have recited as a harmless play song for generations. Ironically, it refers to one of Europe s most devastating diseases. The first recorded case of the plague was in China in 224 B.C.E. But the most significant outbreak was in Europe in the mid-fourteenth century. Over a five-year period from 1347 to 1352. The Black Death had a great impact of change during the late Middle Ages. It changed the way people lived and it affected their lives socially, economically and politically. What caused the Black Death, the plague that may have killed as many as half of all Europeans in the 14th century? Bacteria was carried by fleas that lived on black rats. The rodents spread the plague from China to Europe. The scientific name for it is, Yersinia Pestis. Humans are normally singled out by fleas when there are no rodents left. When a flea bites a rodent, the blood from the rodent goes directly to the flea s stomach, easing hunger. The spread of the plague was very speedy. It was transmitted from person to person with no time to spare. The Plague was spread by rat fleas on ships. Infected rats would die, but their fleas would survive and find new rats wherever they landed. The first signs of the plague were lumps in the groin or armpits. After this, black spots appeared on the arms and thighs and other parts of the body. Very few peopleShow MoreRelatedThe Economic, Political, and Social Effects of the Black Death1268 Words   |  6 Pagesknown as the Black Death. This Black Death was an ecological disaster on a global scale. The effects of the plague on human and certain animal populations from East Asia to as far west as Greenland were catastrophic. All facets of society, from peasant to king were affected; no one was safe. All of society was affected; nothing would ever be the same. Thus, there were many economic, social, and politic al effects of the Black Death. Before one can understand the effects of the Black Death, one mustRead More The Middle Ages or the Dark Ages Essay786 Words   |  4 Pages The Middle Ages Imagine having to bury your own children. How awful would that be? The Middle Ages were a brutal time that included the bubonic plague, many wars and other horrible things. This period is considered to be one of religion and the Catholic Church, but this was overshadowed by chaos and confusion. Although the Middle Ages is often known as the age of faith, a more appropriate title for the time period would be The Dark Ages because of the black death, wars and the collapse of governmentRead MoreLooking Back at the Middle Ages1485 Words   |  6 Pages The Middle Ages where a significant time period with important political, social, religious and economic events, which have shaped history since that time, and the world today. One such event that has affected the politics of the Middle Ages and now was the signing of the Magna Carta. Secondly, was the Black Death (also known as the Bubonic Plague that affected the religious, social, and economic aspects. An event that affected the religious and economic aspects were the Crusades. There wasRead MoreImportant Events in the European History That Changed the European Society814 Words   |  4 Pagesthey are useful for the society and help it to become a better one. In this work I am going to explain how, the European world changed dramatically as a result of a series of stresses in the late 13th to the mid 15th centuries and how such events as Black Plague, the One Hundred Years War and the collapse of Papal Power influenced the Medieval European society. The transformation of the Medieval society was long and painful process, which lasted approximately 150 years. The development in the yearsRead MoreThe High Middle Ages1314 Words   |  6 PagesJohn Foster HIS-109 March 6, 2014 Professor Carta The High Middle Ages The Christian religions rise to supremacy in the middle ages was the result of several factors. Christians had long been persecuted by the Roman Empire because the Romans felt that Christianity challenged and offended the Greco-Roman Gods and the Christians were prone to revolt against Roman rule. Christianity survived because it had many teachings that appealed to the downtrodden in Roman society, these teachings beingRead MoreEssay on Disease and Treatment in the Middle Ages1231 Words   |  5 Pagesand Treatment in the Middle Ages The Middle Ages were tough times when it came to disease and medicine. There were numerous types of sickness and disease that flooded Europe during the Middle Ages. Not helping the situation, the medicinal knowledge of the people of Europe of the time was not up to par. Some of the diseases and illness that were running rampant during these times were pneumonia, leprosy, and the plague. The middle ages were a time of great suffering and death because of the abundantRead MoreThe Black Death Pandemic967 Words   |  4 Pages The Black Death: A Murderous Pandemic that Led Life to How it is Today The Black Death, a horrible pandemic plague that spread through all of Europe, taking 25,000,000 people along with it. In 1347, a mysterious pandemic appeared in the city-states of Italy just as Europe was recovering from famine. The Epidemic did not end until 1351 partly due to the belief of the people that this plague was spread through the air and was gods way of punishing them for their sins. Although this plague killedRead MoreThe Middle Ages : A Look At The Dark Ages718 Words   |  3 PagesZachary Plew 4/18/17 The Middle Ages is associated with the Dark Ages due to the period including social disorder, political turmoil and widespread disease. The Middle Ages was a period between 500 A.D. to 1500 A.D. during which Europe experienced many drastic changes following the fall of Rome. Some of these changes were beneficial, but the changes also caused negative effects too. Overall, the Middle Ages was a dark time for Europe. The Middle Ages was a dark time for Europe becauseRead More The Plague Essay1241 Words   |  5 Pagespopulation throughout the 14th and 15th centuries. Its effects on western civilization still lasts today, but for the people who lived during the plagues wish indeed that they did not. Society was depressed, the economy was struggling, food was scarce, and all of Europe was in battle. Who would want to live in these dramatic conditions? No one, and not for centuries to come. nbsp;nbsp;nbsp;nbsp;nbsp; The Plague, also known as the Black Death, or the Bubonic Plague, which struck in 1346, andRead MoreThe Black Plague Of Middle Ages1257 Words   |  6 PagesMiddle Aged Europe was an expansive period of time and marked the beginning of the Renaissance. A period of time in which reformation of important social aspects such as religion, education, and the arts was active and advancing at a rapid rate. Significance of intellectual inquiry and the belief in the human mind helped shape many new philosophical ideas and theories that would be spoken about for hundreds of years. This increasingly advanced period of time was quickly halted around the middle of