Antivirus is a type of software that is used to secure, detect and remove computer viruses from computer systems. Called Antivirus Virus Protection Software. This application can determine whether a computer system has been infected with a virus or not. Generally, the software runs in the background (background) and do a scan of all the files that are accessed (opened, modified, or when saved).
Antiviruses now not only detect the virus. Antivirus programs are now also equipped with the ability to detect spyware, rootkits, and malware - malware. Not only that, now equipped antivirus firewall to protect your computer from hacker attacks and anti-spam to prevent junk email and / or viruses to the user's inbox.