Friday, May 22, 2020

The Basic Internet And Its Security - 1420 Words

Sydney B. Ellis 4th hour April 8, 2015 The Basic Internet and Its Security What is the basic internet and how do you make it safe? Most people in the world have a computer but do not know what makes a computer a computer. Most people do not even know what device would qualify as a computer. The computer is an important part of the twenty-first century. The responsibility of computer users goes beyond internet access. The computer has basic internet and security that is needed to be followed. The internet guarantees a source of internet access nevertheless; a computers security is the most important part of being a computer owner or user. A computer has basic information that must be understood. A computer is a device that can manipulate information or data. Computers can be a laptop, a tablet, a mobile phone, a server, and your everyday desktop computer. On a computer you can stream movies, create documents, browse the web, or send emails. To do these things on a computer hardware and software is needed. What is hardware and software? Hardware is the physical attributes that make up a computer. Hardware can be found on the inside and on the outside of the computer. Hardware that is on the inside of a computer could be the motherboard which is the â€Å"backbone of the computer.† Another piece of Hardware that is on the inside of a computer is the hard drive. The hard drive is used to store data in the computer. The Hard drive is the largest data storage device in theShow MoreRelatedInternet And Local Security Applications And Protocols1410 Words   |  6 Pageswill cover the topic of knowledge of basic internet and local security applications and protocols, including high†security password generation. First, this essay will tell you things about the internet such as when it was created and who created it. Key terms of the internet will be discussed too. 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There is a large amount of personal, business, and government information on the internet and network infrastructures. Network security is becoming of great importance because of the attacker s ability to steal this information that can be easily acquired through different means of attacks. The internet itself along with network infrastructures has many security risks in it. Knowing w hatRead MoreA Brief Note On Cyber Crime Through The Years1482 Words   |  6 PagesImportance of Cyber Security in America â€Å"If you spend more on coffee than on IT security, you will be hacked. What’s more, you deserve to be hacked. -Richard Clarke Cyber Crime through the Years Since the late 1980’s, cyber security has been a growing industry. Viruses such as the Morris Worm proved to the world that the internet was not a safe and secure architecture. In later years the Michelangelo virus, Melissa, and Concept began to push the IT industry for research on cyber security and antivirusRead MoreNetwork Security And The Internet1498 Words   |  6 Pagesnow than ever since the birth of the Internet and with the new networking technology coming out. There is a large amount of personal, business, and government information on the internet and network infrastructures. Network security is becoming of great importance because of the attacker s ability to steal this information that can be easily acquired through different means of attacks. The internet itself along with network infrastructures has many security risks in it. Knowing what attack methodsRead MorePrivacy Is The Condition Of Being Separated From The Perspective Of Others1091 Words   |  5 Pag esinfers indefinite quality, and for others, it gathers security of before long identifiable information. The implications of security fluctuate transversely over individuals and social orders. The Internet serves as the routines for correspondence and a stage for fiscal trades, and a lot of essential data is exchanged over it. With its growing use for distinctive purposes, another thought has created Internet security. It fuses tending to the security needs of customers information and expecting presentationRead MoreInternet Security Why Bother?859 Words   |  4 PagesInternet Security†¦ why bother? Internet technology has bestowed upon society a new norm, one that brought about both social and economic benefits. Communication and informal relationships reached higher heights with persons connecting with distant and ‘long lost’ family and friends, through email and social media. Businesses themselves have also benefited from this technology. They saw their demographic expand overnight from local, to regional and international clientele. However in parallel to anRead MoreInformation Security Breaches And Attacks949 Words   |  4 PagesInformation security breaches and attacks are aiming businesses every now and then. Any company that is connected to the internet has some information security risks. Businesses that operation in healthcare, finance and any government sectors, suffers from more of such information security risks as they collect, store and process sensitive personal, financial and confidential data. ABC Accounting Firm is a major national accounting fi rm that is utilizing the power of information technology. The companyRead MoreSecurity Issues Facing Online Banking1480 Words   |  6 PagesThere are security issues facing online banking and can these concerns be addressed. Introduction: Current technology is evolving fast, which brings new dimensions to people’s daily life. Moreover, network technological innovation not only brings huge economic benefits to the bank, but also has brought new needs for the requirements of online banking. The interaction between user and bank has been substantially enhanced by deploying computer operations, which not only reduce the cost of bank serviceRead MoreComputer Maintenance892 Words   |  4 Pagesutility. Networking Concepts Having a base understanding of networking and internet concepts can save you a great deal of stress when having to configure and setup networks. When it comes to internet connection, everyone today needs to have the quickest connection that can be provided for them. Majority of towns and cities offer high-speed internet connections available in two major choices: cable or DSL. Cable Internet is faster of the two, but for the average user the difference is never noticed

Sunday, May 10, 2020

Nebraska Man - An Evolution Hoax

The Theory of Evolution has always been a controversial topic, and continues to be in modern times as well. While scientists clamor to find the missing link or the bones of ancient human ancestors to add to the fossil record and collect even more data to back up their ideas, others have tried to take matters into their own hands and create fossils they claim are the missing link of human evolution. Most notably, Piltdown Man had the scientific community talking for 40 years before it was finally definitively debunked. Another discovery of the missing link that turned out to be a hoax was called Nebraska Man. Maybe the word hoax is a bit harsh to use in the case of Nebraska Man, because it was more of a case of mistaken identity than an all out fraud like the Piltdown Man turned out to be. In 1917, a farmer and part time geologist named Harold Cook who lived in Nebraska found a single tooth that looked remarkably similar to an ape or a human molar. About five years later, he sent it to be examined by Henry Osborn at Columbia University. Osborn excitedly declared this fossil to be a tooth from the first ever discovered ape-like man in North America. The single tooth grew in popularity and throughout the world and it wasnt long before a drawing of the Nebraska Man showed up in a London periodical. The disclaimer on the article that accompanied the illustration made it clear that the drawing was the artists imagining of what the Nebraska Man may have looked like, even though the only anatomical evidence of its existence was a single molar. Osborn was very adamant that there was no way anyone could know what this newly discovered hominid could look like based on a single tooth and denounced the picture publicly. Many in England who saw the drawings were quite skeptical that a hominid had been discovered in North America. In fact, one of the primary scientists who had examined and presented the Piltdown Man hoax was vocally skeptical and said that a hominid in North America just did not make sense in the timeline of the history of life on Earth. After some time had passed, Osborn agreed that the tooth may not be a human ancestor, but was convinced it was at least a tooth from an ape that had branched off from a common ancestor as the human lines did. In 1927, after examining the area the tooth was discovered and uncovering more fossils in the area, it was finally decided the Nebraska Man tooth was not from a hominid after all. In fact, it was not even from an ape or any ancestor on the human evolution timeline. The tooth turned out to belong to a pig ancestor from the Pleistocene time period. The rest of the skeleton was found at the same site the tooth had originally come from and it was found to fit the skull. Even though Nebraska Man was a short lived missing link, it tells of a very important lesson to paleontologists and archaeologists working in the field. Even though a single piece of evidence looks to be something that could fit into a hole in the fossil record, it needs to be studied and more than one piece of evidence needs uncovered before declaring the existence of something that actually does not exist. This is a basic tenet of science where discoveries of a scientific nature must be verified and tested by outside scientists in order to prove its veracity. Without this checks and balances system, many hoaxes or mistakes will pop up and stall out the true scientific discoveries.

Wednesday, May 6, 2020

Optimizing Pilot Planning and Training for Continental Airlines Free Essays

Optimizing Pilot Planning and Training for Continental Airlines Summary Continental Airlines is the fifth largest airline based on passenger volume in United States. It provides over 1,100 daily flight services to five continents. Effective manpower planning is a key component for the success of Continental Airlines. We will write a custom essay sample on Optimizing Pilot Planning and Training for Continental Airlines or any similar topic only for you Order Now It is essential for Airline Company to adjust its need for pilots constantly in different position in response to new market opportunities, changing passenger demand, acquisition and retirement of aircraft and training resources and evolving economic conditions. Therefore, the company collected information from several separate database systems and built the training plans by using spreadsheet. However, this development method was time consuming and complicated and the database used was not capable for training plan as it was used for more 10 years. In order for solving the complicated, large-scale pilot planning and training program and increasing the competitive advantage in air transportation market, Continental Airlines replaced the old database system and spreadsheets by the Crew Resource-Solver integrated decision-support system. It includes four main modules to handle staffing, vacation, planning and training. The staff-administration module and vacation-administration module maintain crew records including all current and past assignments, absences and training while the planning-optimization module and training optimization module provides information of pilot-planning and training functions (Yu, Pachon, Thengvall, Chandler and Wilson 2004). Generally, Continental Airlines uses system bid award to determine the needs of staff changing to different positions and handle the pilots’ requests to change positions. It mainly uses seniority-based rules for decision making. In an average system bid award, 15 to 20 percent of the airline’s pilots receive new positions. As long with system bid award, the Crew Resource-Solver system can build the training program that establishes the timing of training, advancements, releases, and new pilot hires. The Crew Resource-Solver system includes two phase to solve the pilot training problem. The pilot-transitioning phase determines the timing of pilot transitions by using limited information about training capacities to restrict the number of pilots assigned to training. The training-class-scheduling phase produces the detailed training schedule taking as input the solution from the pilot transitioning phase. As a result, the training program contains a set of detailed training schedules including all training events for each student and each training resource. The training program must satisfy all the constraints set by Continental Airlines such as pilots training will not be assigned during their vacations and other scheduled absences. Planners are able to use system to customize the training plans by changing the objectives and options (Verbeek 1991). Analysis The main objectives of the Crew Resource-Solver system are: 1. The improvement of the efficiency of the training programs 2. The forecast of future airline pilots’ needs 3. The maximization of the cost savings There are a number of advantages in using the Crew-Resource Solver system. First, the system improves the airline’s processes by enhancing information sharing within the organization and by simplifying system maintenance. Second, the system enhances data integrity by eliminating duplicate data storage and automating processes. Third, the system saves time compared to the old manual approach as it can produce a complete, optimized training plan that includes both the pilot transitions and the training class schedules within an hour (Yu et al 2004). Moreover, the system increases the flexibility of the training program as it is able to customize by adjusting objectives and setting options. The Crew-Resource Solver system provides an optimal set of components that can satisfy all training program requirements. However, there are several limitations to the Crew-Resource Solver system. First, the training program constraint is based on the traditional training plan which highlights the inherent weakness of any optimization model as it relies upon sound data for accurate outputs (Sarker 2008, p. 5). Second, the potential sources of savings vary depending on different system bids. It is the fact that a bid will have no cost components associated with those activities when it is no required on new hires and pilot releases. Third, even using the system, there is a trade-off between block-hour shortages and other costs on the training plans. Therefore, when block-hour shortages cost increases, the training cost will decrease, vice versa. It is unable to decrease both block-hour shortages cost and training costs together. Finally, the final decision of the training program is not automated and requires management to select the best option for each training program. Result The Crew Resource-Solver system is an important investment of Continental Airlines to upgrade the management of manpower-planning needs by resource optimization and operation and financial performance improvement. Based on the evidence given in the article, the Crew-Resource Solver integrated decision-support system is a successful program for Continental Airlines to achieve its above objectives. First, there are three ways for the cost savings. Training classes’ schedules become more efficiently and the number of pilots sending to training decrease. Second, there is reduction in pay-protection costs as promoting pilots in new positions in seniority order. Third, it reduces payroll costs because the system can provide the optimized training plans which can use exiting pilots more efficiently and reduce the chances to hire new pilots. In fact, many recommendations derived from the Crew Resource-Solver integrated decision-support system have already been applied and have helped Continental Airlines to save approximately $10 million each year. Second, the integrated system have focused process improvement and improved data integrity, and it is easier to maintain than the numerous legacy systems and spreadsheet application it replaced (Yu et al 2004). References Sarker, R Newton, C 2008, Optimization Modelling: A Practical Approach, CRC Press, Florida. Verbeek, P. (1991) Decision support systems – An Application in strategic manpower planning of airline pilots. Eur. J. Oper. Res. (55)3, 368-381 Yu, G. , Pachon, J. , Thengvall, B. , Chandler, D. Wilson, A. (2004) Optimizing Pilot Planning and Training for Continental Airlines. Interfaces, Vol. 34, No. 4, July-August, p. 253-264 How to cite Optimizing Pilot Planning and Training for Continental Airlines, Essay examples