Antivirus is based on users divided into two, namely the Home User and Network / Corporate User. For home users, antivirus running as usual. For the network version (network), antivirus scans on a computer - the client computer and network drives. In addition, the update client computers in the network do not have to directly from the Internet. Client computer can do upate directly from a network server.
Antivirus based on the way get one. Free antivirus: anti virus obtained free of charge 2. Antivirus Trial: Anti virus obtained free of charge but given the time constraints 3. Donation antivirus: Anti virus obtained by having to donate 4. Paid antivirus: Antivirus obtained by purchasing.
Sources :http://id.wikipedia.org/wiki/Antivirus