Report on Computer Systems

2384 Words10 Pages
Introduction to Operating Systems Looking Inside a Computer 28thNovember 2013 Contents Introduction 3 Processor 4 Memory 6 Input and Output Elements 9 Support Elements 12 Conclusion 14 Bibliography 15 Introduction In 1945, a mathematician and computer scientist – John Von Neumann created a model named the Von Neumann architecture. The model describes the design architecture from the electronic computers by creating subdivisions of a central processing unit. The purpose of this model was to show the components within the central processing unit (CPU) such as the control unit and the arithmetic logic unit. This model showed how an instruction fetch and data operation could not be completed at the same time as they shared a common bus. (Norton, 1987) The aim of this this report is to clearly highlight and explain the major components of a computer system, including how they operate, their main types, history and reasons for designs. This report will illustrate the functionality of a Processor including its main elements, types of Memory, Input and Output Elements and lastly Support Elements; by referring to external sources and taking into account the Von Neumann architecture. Processor Processors, also known as a central processing unit in a computer are probably the most important component of a functional computing system. The processor is a piece of hardware that carries out basic logical calculations at alarming rates. The speed of a computer system greatly depends upon its processing unit (ArticleAlley, 2010). The reason for this is that the speed of a processor is calculated by discovering how many calculations it can complete within a certain time period. Therefore the faster the speed of a processor the faster the system will operate. The micro processer
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