Question

What is a computer virus, and how can antivirus software protect your system?

Hint:

\textbf{Remember:} Virus = Harmful program. Antivirus = Protection against viruses.

Answer 1

Concept: Computers connected to the internet are vulnerable to harmful programs called viruses. To prevent damage and ensure safety, antivirus software is used. Computer Virus: A computer virus is a malicious program designed to harm, disrupt, or gain unauthorized access to a computer system. It can spread from one computer to another through infected files, email attachments, downloads, or external devices like USB drives. Effects of a Computer Virus:

Slows down system performance
Deletes or corrupts files
Steals personal data
Causes system crashes
Displays unwanted pop-ups
Antivirus Software: Antivirus software is a program that detects, prevents, and removes viruses and other malware from a computer system. It acts as a security shield for the system. How Antivirus Protects Your System:

Virus scanning: Scans files and programs for threats
Real-time protection: Monitors system activity continuously
Quarantine: Isolates infected files
Removal: Deletes harmful software safely
Updates: Regular updates to detect new threats
Examples of Antivirus Software:

Quick Heal
Norton Antivirus
McAfee
Kaspersky
Conclusion: A computer virus is a harmful program that can damage data and system performance, while antivirus software helps protect the system by detecting and removing such threats.