COMPUTER VIRUSES
CONTENT
- Meaning of Computer Virus
- Types of Computer Virus
- Examples of Viruses
- Sources of Viruses
Meaning of Computer Virus
Computer virus is a program intentionally written by some software developer to cause damage to the computer, programs and files in which it found itself. The computer virus may be designed to display unwanted messages.
The computer virus is a program that has the ability to replicates itself by changing other programs to include a copy of itself. A virus causes the infected computer system to function in ways not originally planned. The computer virus cannot be seen with your natural eyes yet the effects can be notified on an infected system.
Types of Computer Virus
There are basically three ways in which a virus will infect your microcomputer.
- Boot sector virus
- Executable file virus
- Document virus
Boot Sector
A boot sector virus infects hard drives and flash disks by making itself available on the boot sector of the disk.
- NEW: Download the entire term's content in MS Word document format (1-year plan only)
- The complete lesson note and evaluation questions for this topic
- The complete lessons for the subject and class (First Term, Second Term & Third Term)
- Media-rich, interactive and gamified content
- End-of-lesson objective questions with detailed explanations to force mastery of content
- Simulated termly preparatory examination questions
- Discussion boards on all lessons and subjects
- Guaranteed learning
ClassHall Instructor
Wilfred Bassey
Halima Ahmadu
David Oyedepo
Sadiq Barau
Zainab