yes. NovaBACKUP software for example, will scan and report files that could potentially contain viruses and cause problems to your system.
Barracuda Networks not only offers backup for your software but this weebsite also offers malware, and antivirus protection to keep you up to date and protected along the way. I would use http://www.barracudanetworks.com for your backup needs.
No antivirus does not come with Mac. You can purchase the antivirus software with your Mac but because Macs are less likely to get virus the antivirus software is not really needed but can be purchased to be safer or backup your computer.
Symantec Backup is through Norton and comes with a Norton Antivirus subscription. When enabled it allows you to backup your system and files onto disks in case something were to happen to your computer you would still have access to them.
Mirror is nothing utility in antivirus software
Application software
"antivirus" is protective software designed to defend your computer against malicious software.
Antivirus software will notice about the virus,malware,spyware etc
One can download eTrust antivirus software for free from sites such as CNET download, bestshareware, or techserious. It is reviewed by CNET as being a dependable antivirus software.
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There are many available enterprise for backup software. MySQL and Symantec provide the industry leading enterprise solutions for the backup software.
Antivirus 2009 is rouge software. Spyware Doctor is not. I got antivirus 2009 because i didn't know what it was. But Spyware Doctor isn't rogue software. But if you have Antivirus 2009 you're computer can be at risk.
NOD32 antivirus software offers a small file size when compared to other antivirus brands. It has also failed to miss an "In-The-Wild" virus, a claim that no other antivirus software can make.