FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A computer virus is a malicious piece of executable code that is intentionally imported into a computer or a network and usually damages some aspect of the computer’s or the network’s operation. The virus may damage files, directories, other software, system configuration information, any one or all of the above.

Detailed explanation-2: -true as it replicates it attaches itself to files and when activated replicates itself and ultimately damages the computer system.

Detailed explanation-3: -Viruses can delete programs, manipulate keyboards, allow access to sensitive information, or flood a network with traffic, making it impossible to do anything online.

Detailed explanation-4: -Computer virus refers to a program or a set of programs that disrupts the normal operation of a computer. Virus infects, erases or destroy data files. It enters in the computer without the permission or knowledge of the user. The Types of a virus are:-Boot virus, Program file virus, Multipartite virus and Macro virus.

Detailed explanation-5: -Computer viruses are programmed to adversely affect PC performance by interfering with programs, deleting specific files, and reformatting a computer’s hard drive. Some computer viruses also replicate themselves by flooding a computer system network with traffic making it tedious to undertake internet activities.