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Search results 11 - 20 of 291 matching essays
- 11: Computer Viruses and their Effects on your PC
- Computer Viruses and their Effects on your PC Table of Contents What is a Virus? .............................................1 HOW A VIRUS INFECTS YOUR SYSTEM: .............................2 HOW DOES A VIRUS SPREAD? .....................................3 BIGGEST MYTH: "I BUY ALL OF MY PROGRAMS ON CD ROM FROM THE STORE". STORE BOUGHT SOFTWARE NEVER CONTAINS VIRUSES.... 3 INFECTION (DAMAGES) ..........................................4 PROTECT YOUR COMPUTER, NOW!! ................................ 5 A virus is an independent program that reproduces itself. It can attach itself to other programs and make copies of itself (i.e., companion viruses). It can damage or corrupt data, or lower the performance of your system by using resources like memory or disk space. A virus can be annoying or it can cost you lots of cold ...
- 12: Computer Viruses
- Computer Viruses (anonymous) WHAT IS A COMPUTER VIRUS: The term usually used to define a computer virus is: ' A computer virus is often malicious software which replicates itself' [ Podell 1987 for similar definition ] - COMPUTER VIRUSES ARE BASICALLY PROGRAMS, LIKE A SPREADSHEET OR A WORD PROCESSOR. - PROGRAMS WHICH CAN INSERT EXECUTABLE COPIES OF ITSELF INTO OTHER PROGRAMS. - PROGRAMS THAT MANIPULATES PROGRAMS, MODIFIES OTHER PROGRAMS AND REPRODUCE ITSELF IN THE PROCESS. However ... put into your computer is via a Trojan Horse. -TROJAN HORSE IS USUALLY CONTAMINATED IN DISKS WHICH ARE PARTICULARY PIRATED COPIES OF SOFTWARE. IT IS SIMPLY A DAMAGING PROGRAM DISGUISED AS AN INNOCENT ONE. MANY VIRUSES MAYBE HIDDEN IN IT, BUT T.H. THEMSELVES DO NOT HAVE THE ABILITY TO REPLICATE. Viruses also can be spread through a Wide Area network (WAN) or a Local Area Network (LAN) by telephone ...
- 13: Information About Viruses
- Information About Viruses A growing problem in using computers is computer viruses. Viruses are pesky little programs that some hacker with too much time on his hands wrote. Viruses have been known to create annoyances from displaying messages on the screen, such as "Your PC is now ...
- 14: Intro To Computer Virus
- ... drive becoming infected and just where do they come from anyway? A virus is computer program, usually a very small program, that interferes with the smooth running of a computer's operating system and hardware. Viruses are designed to copy themselves and hide within your computer to avoid detection. In 1995 Ernst & Young released a security survey that showed that 67% of all companies had virus attacks. That was a rise from 54% in 1994. The cost of each attack was estimated at $13, 000. The NSCA (National Computer Security Association) reported in January of 1997 that 200 macro viruses had been discovered. Six months later the amount of macro viruses had risen by over 300%. At this stage it is estimated that 90% of all companies have at least one macro virus resident somewhere in their computer systems. Types of Viruses Under the main ...
- 15: Computer Viruses
- Computer Viruses It is morning. You awaken to the sweet smell of flowers and the sound of birds chirping. You turn on your new I B M compatible computer only to find that every bit and byte ... effects of a computer virus can be harmless. Sometimes the effects of a computer virus can be disastrous. But whichever way you look at it they still cause problems. There are many kinds of computer viruses. Three of the most common are the time bomb, the logic bomb and the Trojan horse. The time bomb is a virus triggered by the computers clock reaching a certain date and time (often Friday the thirteenth). The logic bomb is a virus triggered by a certain value appearing a certain part of the computers memory, either relevant to the viruses purposes or at random. The Trojan horse is an innocent seeming program deliberately infects with a virus and circulated publicly. There is a cure for these viruses, though. These "cures" are called vaccines. A ...
- 16: Computer Viruses
- Computer Viruses Explain the difference between viruses, worms and Trojan horses in the context of computer and data security. Discuss the measures that need to be taken in order to maintain security. There is a type of computer program that is designed ... computer displays annoying messages ? Your computer develops strange visual and sound effects ? Files on your computer mysteriously disappear ? Your computer starts working very slowly ? Your computer reboots unexpectedly These programs are typically referred to as viruses although technically the computing term virus actually refers to a specific type of pest program. Other types are called Trojan horses and worms. The difference between these pest programs is how they behave when ...
- 17: Computer Viruses
- Computer Viruses Explain the difference between viruses, worms and Trojan horses in the context of computer and data security. Discuss the measures that need to be taken in order to maintain security. There is a type of computer program that is designed ... computer displays annoying messages ? Your computer develops strange visual and sound effects ? Files on your computer mysteriously disappear ? Your computer starts working very slowly ? Your computer reboots unexpectedly These programs are typically referred to as viruses although technically the computing term virus actually refers to a specific type of pest program. Other types are called Trojan horses and worms. The difference between these pest programs is how they behave when ...
- 18: Truth and Lies About the Computer Virus
- Truth and Lies About the Computer Virus Walk into any computer store today and there will be at least twenty or thirty computer virus programs. From the looks of it computer viruses have gotten out of hand and so has the business of stopping it. The computer user must cut through the media hype of apocoliptic viruses and shareware programs and discover the real facts. Before we even start the journey of exploring the computer virus we must first eliminate all the "fluff." The computer user needs to understand how information about viruses reaches the public. Someone creates the virus and then infects at least one computer. The virus crashes or ruins the infected computer. A anti-virus company obtains a copy of the virus and studies ...
- 19: Computer Viruses
- Computer Viruses A computer virus is an illegal and potentially damaging computer program designed to infect other software by attaching itself to any software it contacts. In many cases, virus programs are designed to damage computer systems maliciously by destroying of corrupting data. If the infected software is transferred to or accessed by another computer system, the virus spreads to the other system. Viruses have become a serious problem in recent years, and currently, thousands of known virus programs exist (Reed 85-102)b. Three types of viruses are a boot sector virus, file virus, and Trojan horse virus. A boot sector virus infects the. When the infected boot program executes, the virus is loaded into the computers memory. Once the ...
- 20: Computer Viruses
- Computer Viruses Professor J. Brown Information Systems 201 A computer virus is an illegal and potentially damaging computer program designed to infect other software by attaching itself to any software it contacts. In many cases, virus programs are designed to damage computer systems maliciously by destroying or corrupting data. If the infected software is transferred to or accessed by another computer system, the virus spreads to the other system. Viruses have become a serious problem in recent years, and currently, thousands of known virus programs exist (Reed 85-102). Three types of viruses are a boot sector virus, file virus, and Trojan horse virus. A boot sector virus infects the boot program used to start the system. When the infected boot program executes, the virus is loaded ...
Search results 11 - 20 of 291 matching essays
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