Exercise three Essay Example | Topics and Well Written Essays - 750 words

Exercise three - Essay Example In the history of teaching information systems, there has been a shift of emphasis in regard to teaching OS material. Previously the focus was on disk operating system (DOS). This was the first operating system for IBM compatible desk top computers. Then, the RAM was quite limited and the programming language used was BASIC (Hailperin 57). In the 1980s sequential storage devices were used to store programs. Unlike RAM, these types of data is stored and accessed in sequence. Today we have many different types of operating systems, and they can be broken down into two types of OS. 1) Open source Operating Systems 2) Proprietary Operating Systems Proprietary OS are owned by corporations and controlled by them. Examples are DOS and WINDOWS versions. In open source OS, the codes are open to everyone and therefore, anyone can make changes to the OS. There is a third class of OS labelled as Embedded Operating Systems. They are the operating systems that are permanently stored on ROM (Read Only Memory) chips that are embedded into smart phones, video games, and other electronic devices. The American Standard Code for Information Interchange (ASCII) was developed. The code typically uses an 8 bit code which would have 2 to the 8th power possible orderings of the bits. This could represent 256 different characters (Hailperin 264). This application software is more restricted in whatever it performs, but it often completes a task much better or easier than general purpose software. For example, a tax calculation program that keeps a record of expenses for tax purposes. The internet community knows that the main step in shielding their private information on the internet is to certify that they use an encrypted link. As a consequence, phishing attacks, which make use of SSL certificates, are risky as they are linked with increased level of guarantee. The extent of an RSA public key gives a signal of the power of the

A documented position paper Assignment Example | Topics and Well Written Essays - 1750 words

A documented position paper - Assignment Example This is kept going by strong ICT systems and processes that provides real-time information that links all stakeholders. The company’s international freight partners – DHL provide worldwide reach and specialized support. Also, Primark has made reasonable moves to limit reputational and ethical risks that come with operation in foreign markets around the world. This is done through strong monitoring mechanisms and corporate social responsibility. Primark is a UK-based clothing manufacturing and retail entity that originally founded in Dublin Ireland in 1968 (Primark Website). Today, Primark has over 200 outlets in Europe and North America. The company’s fundamental corporate strategy is based on an integrated global supply chain system through which the company designs its product in the UK and USA, sends the outlines to factories in developing countries like Bangladesh, Turkey and India where they are sewn and export it to the UK for onward distribution to Primark outlets around the developed world. This paper posits that Primark’s Global Supply Chain Management system is the firm’s primary cause of competitive advantage. In order to achieve this end, the paper will draw on evidential sources to show that the company saves a lot of cost by locating its manufacturing units in the developing world and sells them to consumers at high prices in the developed world. The integration of ethics and reputation i s the main means through which the company retains its continuous cost leadership system through the Global Supply Chain Management (GSCM) process. The global textile industry has gone through a major reformation after the Cold War ended (Kunz and Garna 3). This is due to the apparent trend towards the elimination of barriers towards international trade and the major disparities that exists in different parts of the world due to the differences in costs and values. The rational producer will seek to minimize costs and maximize sales revenue. Hence,