FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Viruses spread when the software or documents they get attached to are transferred from one computer to another using a network, a disk, file sharing methods, or through infected e-mail attachments. Some viruses use different stealth strategies to avoid their detection from anti-virus software.

Detailed explanation-2: -Viruses spread by infecting other programs, either on the same computer or on other computers connected to it over a network. Any newly infected programs/computers will try to infect even more. Pure data files are safe. This includes graphics and sound files such as .

Detailed explanation-3: -It is important to note that a virus cannot be spread without a human action, (such as running an infected program) to keep it going. People continue the spread of a computer virus, mostly unknowingly, by sharing infecting files or sending e-mails with viruses as attachments in the e-mail.

Detailed explanation-4: -Ans. A computer virus is a kind of malicious computer program, which when executed, replicates itself and inserts its own code, which spreads a harmful virus in the system.