LOMONOSOV MOSCOW STATE UNIVERSITY Research paper for the Course of English Computer viruses of today Student: Submission date: Instructor: The Faculty of Computational Mathematics and Cybernetics The English Department Moscow 2010 CONTENTS INTRODUCTION 3 1 Essence of computer viruses 4 2 TYPES OF VIRUSES. 6 3 Antivirus software 11 CONCLUSION 13 References 14 Introduction
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For Internet users‚ this threat can come from downloading files through FTP (file transfer protocol)‚ or referencing email attachments. (Please refer to our web page on Handling Email’s File Attachments for details.) What can Viruses do? ■ Slow down email. Viruses that spread by email‚ such asSobig‚ can generate so much email traffic that servers slow down or crash. Even if this doesn’t happen‚ companies may react to the risk by shutting down servers anyway. ■ Steal confidential data. The Bugbear-D worm
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Viruses In computer technology‚ viruses are vicious software programs‚ a form of malware. Viruses exist on local disk drives and spread from one computer to another through the sharing of the infected files. Regular methods for spreading viruses include floppy disks‚ FTP file transfers‚ and copying files between shared network drives. Once installed on a computer‚ a virus may change or remove application and system files. Some viruses can leave a computer inoperable; others just display startling
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Villarreal‚ Luis P. “Are Viruses Alive?” Scientific American‚ December 2004. In the article “Are Viruses Alive?‚” Luis P. Villarreal discusses the effects of viruses on life‚ while presenting different angles as to whether or not they are alive themselves and arguing about the impact viruses have had on evolution. Through a deeper understanding of viruses and their functions‚ the scientific community may come to fully appreciate viruses‚ whether they are living or non-living in themselves‚ as significant
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Are Viruses Alive? 1. Describe how a virus differs from bacteria. Most Viruses are harmful and their only purpose is to invade a host cell‚ reproduce and destroy the host cell in the process. Close to 99% of bacteria are beneficial with only a few that cause diseases. Life on earth could not exist without bacteria. Bacteria produce nearly half of the oxygen found in the atmosphere. Viruses have no cells‚ nucleus‚ cytoplasm or cell membrane. Viruses consist of tiny particles of nucleic acid
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Are viruses alive? Explain why you think viruses are alive or not. Viruses are not alive. This is because even though viruses are made up of molecules (proteins‚ nucleic acids‚ carbohydrates and lipids)‚ they cannot do anything on their own‚ until they enter or come into contact with a living cell. Viruses cannot multiply without having a host cell to initiate the process. Another reason would be that viruses don’t actually do anything on their own. Whenever a virus comes into contact with a cell
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Protecting Against Macro Viruses Marques Tate Rasmussen College This paper is being submitted on February 23‚ 2014‚ for Tina Grezinski’s D181 Excel course. Protecting Against Macro Viruses Many applications‚ such as Microsoft Excel and Word‚ support macro languages. A macro virus attacks these kinds of applications‚ infecting the documents and template files. So if your computer has a macro virus‚ and you use a word template file to make a new document‚ it ’ll also become infected
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Computer Viruses: Past‚ Present And Future In our health-conscious society‚ viruses of any type are an enemy. Computer viruses are especially pernicious. They can and do strike any unprotected computer system‚ with results that range from merely annoying to the disastrous‚ time-consuming and expensive loss of software and data. And with corporations increasingly using computers for enterprise-wide‚ business-critical computing‚ the costs of virus-induced down-time are growing along with the threat
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Bacteria and Viruses Breann Johnson COM/155 03/17/2013 University of Phoenix Bacteria and Viruses Almost 56‚000 people are hospitalized each year‚ and over 1‚300 die because of food borne bacteria and virus microbes. Bacteria and viruses are tiny microscopic pathogens that can cause infectious disease‚ or even result in death. “Infectious diseases remain a major cause of death‚ disability‚ social‚ and economic disorders for millions of people around the world. Poor health
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Howard Mayo NT1230 4/3/12 8 Common Types of Computer Viruses Dictionary.com defines a computer virus as “a segment of self-replicating code planted illegally in a computer program‚ often to damage or shut down a system or network (“Virus‚” 2012).” The term virus has become more generic over the years and has come to represent any type of malware‚ or malicious software. There are many types of malware that can be classified as viruses but it is the intention of this paper to examine 8 of the
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