2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the modern world (c) explain the need for reliability in computer systems (d) explain the need for adherence to suitable professional standards in the development‚ use and maintenance of computer systems (e) explain the importance of ethical‚ environmental and legal considerations when creating computer systems. What is a computer system? At its very basic
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Computer software can be divided into two main categories: application software and system software. Application Software: Application Software includes programs that do real work for user. Example: Payroll systems‚ Inventory Control‚ Manage student database‚ Word Processor‚ Spreadsheet and Database Management System etc. Application software consists of the programs for performing tasks particular to the machine’s utilization. Examples of application software include spreadsheets‚ database systems
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KENDRIYA VIDYALAYA SANGATHAN JAMMU REGION . STUDY/SUPPORT MATERIAL 2011-12 CLASS: XII Computer Science ACKNOWLEDGEMENTS Chief Patron Shri Avinash Dikshit Commissioner KVS‚ New Delhi Patron Shri P. K. Koul Assistant Commissioner KVS‚ Jammu Region Guidance
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UNIT-I INTRODUCTION INTRODUCTION TO COMPUTER The term “Computer” is derived from the Latin word “Computare” which means “to compute” or “to calculate”‚ so it is considered to be calculating device. In fact‚ the main objective of inventing the computer was to create a fast calculating machine. But now-a-days more than 75% of non-mathematical or non-numerical work is carried out by the computers. Today‚ computer technology has spread to every sphere of existence of modern man‚ from railway
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Table of Contents Introduction The dawn of the computer and internet access has passed‚ and the world-wide-web is accessible to over 2 billion global users1. This access has‚ in the last 10 years‚ increased fourfold2 (see footnote for website details that evidence growth) and become abundantly available through the wireless revolution of appliances; whereby mobile internet use has developed and grossly contributed towards the mass global access and usage of the internet. The convenience and
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a system. Basically there are three major components in every system‚ namely input‚ processing and output. Input Output Processing Fig. 1.1: Basic System Components 2 :: Computer Applications In a system the different components are connected with each other and they are interdependent. For example‚ human body represents a complete natural system. We are also bound by many national systems such as political system‚ economic system‚ educational system and so forth. The objective of the
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Computer Systems Individual Assignment Executive Summary This is an analysis study done for the “RAINBOW” digital color lab which is going to be opened soon in Colombo City. The main reason of this analysis is to identify and recommend Computer systems‚ software and peripheral components which will be needed for the employees of the lab for their daily work. Also policies were recommended for security and safety of the computers use‚ Data backup policy and the health and safety of the
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benefit from increases in the minimum wage. However‚ can the minimum wage be too high? The minimum wage controls the gap between the rich and the poor: a gap that many think is too large and could be lowered by increasing the minimum wage. Although they are correct in saying that increasing the minimum wage could reduce the gap between the rich and the poor‚ the minimum wage can still be too high. I argue not upon the question of raising or lowering the minimum wage‚ but upon setting limitations upon
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9-710-442 FEBRUARY 14‚ 2010 JAN W. RIVKIN Revitalizing Dell From the early 1990s until the mid-2000s‚ Michael Dell and his company thrived in the tumultuous personal computer industry. Revenue of Dell Inc. rose from $3.5 billion in 1993 to $55.9 billion in 2005‚ making Dell the world’s largest producer of PCs‚ while net income climbed from $149 million to $3.6 billion. In many of those years‚ Dell earned more on PCs than all of its main rivals combined‚ and among top vendors‚ only Dell
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During the Windows startup process‚ the computer may stop responding (hang)‚ and you may receive the following error message: *** Hardware Malfunction Call your hardware vendor for support *** The system has halted *** One of the following error messages may also be included: NMI: Parity Check / Memory Parity Error NMI: Channel Check / IOCHK
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