History of the Personal Computer Introduction: The history of the personal computer is vast and complex. As computers continue to develop‚ each development brings greater opportunities and challenges to the world of computing. ------------------------------------------------- Learn how it all started and where it has led to in today’s world. Quiz 1. The first accurate mechanical calculator was invented in 1642 by __________. a. Charles Babbage b. Blaise Pascal
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questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination hall. 1 Multiple-Choice Questions Answer all questions in this section. 1. The mass of an isotope of uranium 238 92 U is 238.05 g mol–1. Its density
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Question 1 Briefly describe the background/profile of the company. COMPANY BACKGROUND [pic] [pic][pic] DELL INC. Michael Dell founded Dell based on a simple concept of selling computers directly to their customers. Figure below showed Michael Dell has the founder‚ CEO and Chairman of Dell Inc.:- [pic] Figure 1: The founder‚ CEO and Chairman of Dell Inc He holds the record of being the longest tenured chief executive officer of the company. His concept eliminates
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Delusion of a postracial area We might be aware of some stereotypes related to our social identity but what we don’t know much about is stereotype threat. Stereotype threat has been shown to reduce the performance of successful people belonging to a certain negatively stereotyped group. Claude Steele‚ the author of Whistling Vivaldi‚ a social psychologist and Columbia University provost‚ writes about the work he and his colleagues have done on this phenomenon‚ the tendency to expect‚
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Introduction Every day whether at work or at home‚ there are things that we do that can be improved upon. One way to improve upon them is to look at the processes and identify any issues or bottlenecks. Bottlenecks can occur at any point within the process from preparation to the completion of the process. To steam line a process it is imperative to identify possible issues where bottlenecking occurs. My flow chart for this assignment looked at the time it took me to get ready for work in the morning
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THE WORK DONE BY A CONSERVATIVE FORCE ALWAYS HAS FOUR PROPERTIES: 1. It can be expressed as the difference between the initial and final values of a potential-energy function. 3. It is independent of the path of the body and depends only on the starting and ending points. 2. It is reversible. 4. When the starting and ending points are the same‚ the total work is zero. The total mechanical energy ME = K + U is constant. Object moving in a uniform gravitational field gravitational a
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Security Incidents Computer Forensics Computer Forensics 641 11/1/2012 • Abstract In this document‚ the importance of security incidents is expressed as a high priority for any business that may possess valuable information. Computer networks are attacked more now than they have before‚ and in large numbers. There is a high demand for security within Information Technology to ensure that businesses‚ as well as their clients‚ do not
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Place any one of the original “Trinity” personal computers; PET‚ Apple II or TRS-80 in front of a non-tech savvy person and the look you will receive is one of absolute bafflement. For one‚ though they were made in the 70s‚ that was over 40 years ago and personal computing has gone through many interface changes since then. While the Trinity may resemble what we 21st century computer users are used to‚ they don’t exactly fit the profile for a personal computer any businessman/women would currently
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Potential Energy • Definition and Mathematics of Work • Calculating the Amount of Work Done by Forces • Potential Energy • Kinetic Energy • Mechanical Energy • Power An object can store energy as the result of its position. For example‚ the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly‚ a drawn bow is able to store energy as the result of its position. When assuming
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in any way a threat to humanity.” Views of Technology‚ Ian Barbour. In “Computers and Ethics in the Cyberage”‚ Hester‚ D. Micah and Ford‚ Paul J. Prentice Hall: 2001. Technology as a threat to Humanity. This claim of technology and its developments has been argued for more than a decade as it continues to evolve. Firstly‚ the noun ‘threat’ as defined by The Oxford Dictionary is ‘a person or thing likely to cause damage or danger’. while ‘humanity’ can be defined as the world‚ all human inhabitants
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