Q1. What Is A Computer Virus? - Atishvision
Q1. What is a computer virus?A computer virus is a malicious softwareprogram that can generate multiple copiesof itself, developed with the intent ofdestroying data, application programs andsystem programs.
Q2.How does computer virus transfer /spread?Computer virus transfers/spreads in thefollowing ways:a) Through the Internetb) Through virus infected pen drivec) Through pirated softwared) Through the email
Q3. Mention the types of computerviruses.The followings are the types of computerviruses:a) Boot sector virusb) Program virusc) Multipartite virusd) Polymorphic viruse) Stealth virusf) Macro virus
Q4. What is a Boot sector virus?It is a computer virus designed to infect theboot sector of the disk. It modifies orreplaces the executable program in the bootsector of the disk preventing the computerfrom being able to boot or start up.eg. Disk killer,Danish boot etc.
Q5.What is program/file infecting virus?Program / file infecting virus is acomputer virus that infects executableprogram files having extensions suchas .exe, .com, .dll etc. It modifies thecontent of executable files interferingthem from running.eg. Alien.298, Crazy.A
Q6. What is Multipartite virus?It is a virus with both the combinedfeatures of boot sector virus andprogram virus.eg. Invader, Tequila etc.
Q7. What is polymorphic virus?It is a virus that changes its virus signatureevery time it replicates and infects a newfile so that an anti virus program may notdetectit.eg. Phoenix, Evil etc.
what is virus signature?
Q8. What is stealth virus?It is a virus that hides itself making hard todetect.eg. Frodo, Joshi
Q9. What is Macro virus ?It is a virus that infects the softwaredocuments like MS-Word, MS-Excel etc.causing a sequence of actions to beperformed automatically when theapplication is started.eg. DMV, nuclear etc.
Q10. What are the symptoms of virusinfection in the computer?The followings are the symptoms of virus infectionin the computer:a) It takes a long time to load program.b) The computer system either shuts down orrestarts automatically.c) The computer system hangs from time to time.d) Strange message and unwanted figure can beseen on the screen.e) It renames the files with different names.
Q11. Write the preventive measures toprotect the computer from virus infection.The followings are the preventive measures to protect thecomputer from virus infection:a) Do not use pirated software.b) Install a good anti virus program and update itregularly.c) Scan the mail and unknown files of the Internet beforeopening them.d) Never load an unknown disk into your system unlessyou make sure it is virus free.e) Use the password system to avoid unauthorized use ofthe computer.
Q12. What is anti virus software? Give examples.Anti virus software is a program designedto detect and remove viruses from thecomputer system.eg. a) Norton Anti Virusb) McAfeec) AVGd) Kasparesky
The followings are the types of computer viruses: a) Boot sector virus b) Program virus c) Multipartite virus d) Polymorphic virus e) Stealth virus f) Macro virus. Q4. What is a Boot sector virus? It is a computer virus designed to infect the boot sector of the disk. It modifies or
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Collectively make tawbah to Allāh S so that you may acquire falāḥ [of this world and the Hereafter]. (24:31) The one who repents also becomes the beloved of Allāh S, Âَْ Èِﺑاﻮَّﺘﻟاَّﺐُّ ßُِ çﻪَّٰﻠﻟانَّاِ Verily, Allāh S loves those who are most repenting. (2:22
1. Computer Fundamentals by P.K.Sinha _ Unit I: Introduction to Computers: Introduction, Definition, .Characteristics of computer, Evolution of Computer, Block Diagram Of a computer, Generations of Computer, Classification Of Computers, Applications of Computer, Capabilities and limitations of computer. Unit II: Basic Computer Organization:
What is Computer Architecture? “Computer Architecture is the science and art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals.” - WWW Computer Architecture Page An analogy to architecture of File Size: 1MBPage Count: 12Explore further(PDF) Lecture Notes on Computer Architecturewww.researchgate.netComputer Architecture - an overview ScienceDirect Topicswww.sciencedirect.comWhat is Computer Architecture? - Definition from Techopediawww.techopedia.com1. An Introduction to Computer Architecture - Designing .www.oreilly.comWhat is Computer Architecture? - University of Washingtoncourses.cs.washington.eduRecommended to you b
Some common terms Desktop - a computer fitted on a work desk for personal use, not easily carried Laptop - an "all-in-one" (display, keyboard), fairly light and portable Personal computer (PC) - a computer for personal use Server computer - a computer that provides services Client computer - a computer that makes use of the services of a server .
The keys that operate the computer, very much like a typewriter, with extra keys for special functions. 3. Monitor The part of a computer system that contains the computer screen, where information is displayed. Lesson 1 Handouts - Computer Basics: A Computer Internet Course for Older Adults Module 1 - Handouts: Computer Basics! !H- 3
The computers are classified in four types on the based on data processing. Micro computer Mini computer Mainframe computer Super computer Micro Computer: Micro computers are the computers with having a microprocessor chip as it central processing unit. Originated in late 1970s.
1. Produce a sketch of the parts of a computer system 2. Define the parts of a computer system 3. Discuss the purpose of each part of the computer system 4. Define the ports on a computer 5. Discuss the purpose of each port on a computer UNIT ACTIVITIES 1. Draw a computer system and label the parts 2.
