Computer Virus Information What is a computer virus? Think of a biological virus – the kind that makes you sick. It’s persistently nasty‚ keeps you from functioning normally and often requires something powerful to get rid of it. A computer virus is very similar. Designed to relentlessly replicate‚ computer viruses infect your programs and files‚ alter the way your computer operates or stop it from working altogether. It’s estimated that the Conficker virus infected more than 10 million computers
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COMPUTER FUNDAMENTALS SECTION A PART ONE MULTIPLE CHOICES: 1. (b) Two types. 2. (b) 1 or more input signals to produce output. 3. (d) Both (a) and (c). 4. (b) Non-volatile. 5. (c) Direct-access storage device. 6. (c) Multiple object program files of any software. 7. (d) None of the above. 8. (b) way in which the network’s nodes are linked together. 9. (a) World wide web 10. (a) General purpose electronic equipment for homes. PART TWO 1. WRITE A SHORT NOTES ON “THE OSI MODEL”
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today’s society‚ almost every household has at least one computer if not more. In fact‚ it is not strange to walk in to a house that has two or three computer. Computers are all the same in one way or another‚ although they do vary from sizes to capabilities. Laptop computer and Desktop Computer are two computers that are similar but different. A Laptop computer is considered top of the by almost anyone who knows about them. A laptop computer can cost a person any where from eight hundred dollars
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COMPUTER REVOLUTION Personal Computers The personal computer revolution was a phenomenon of immense importance in the 1980s. What the average American commonly refers to as a PC‚ or personal computer‚ did not even exist before the 1970s. Mainframe computers had been the norm‚ and they were primarily relegated to business and scientific use. With the dawn of the personal computer all Americans were allowed potential access to computers. As competition and modernization increased‚ issues of cost
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- Suresh Khanal Computer Networking Short Questions and Answer www.psexam.com Computer Networking Short Questions and Answers Suresh Khanal Kalanki‚ Kathmandu shkhanal@gmail.com shkhanal@yahoo.com Published By: http://www.psexam.com contact: info@psexam.com Computer Networking: Short Questions and Answers Published by PS Exam Kalanki‚ Kathmandu Nepal www.psexam.com Copyright ©2009 author. No part of this publication may be reproduced‚ stored in a retrieval system or transmitted
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Computer graphics This article is about graphics created using computers. For the article about the scientific study of computer graphics‚ see Computer graphics (computer science). For other uses‚ see Computer graphics (disambiguation). [pic] Computer graphics are graphics created using computers and‚ more generally‚ the representation and manipulation of image data by a computer. The development of computer graphics‚ or simply referred to
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A product that I have had experience purchasing is a computer. I bought it for attending college‚ but I have used it for so many other purposes. Today‚ having a computer has almost become a necessity; people use them for school‚ shopping‚ research‚ and communication. Many things that you may be on the lookout for‚ you can only find on the internet. Today‚ many people own a computer already and have no need to purchase another one. New discoveries in technology could be a factor in the change of supply
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Horses Computer viruses are man-made program or a piece of code which can load onto your computer without your knowledge and cause damage to your computer system. The dangerous part of the computer viruses is they are attached to a file or program‚ which means the computer viruses will not running until you click the file or program‚ and even more dangerous type of viruses is one capable of transmitting itself across networks and bypassing security system. Worms are similar to computer viruses
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Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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of malware. They spread over computer networks by finding operating system vulnerabilities. Worms typically cause harm to their host networks by consuming bandwidth and shorting out web servers. Generally‚ the intent of the worm is to be malicious. There are some worms however‚ which do not have malicious intent. They are referred to as anti-worms. Computer worms are classified as a type of computer virus‚ but there are several characteristics that distinguish computer worms from regular viruses
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