NIS 2011 for Windows: Scanning Questions

I'm doing a report for school and am looking for some information. Any help is greatly appreciated.

 

Does Norton Internet Security 2011 for Windows scan for threats on the following platforms.

Mac OS threats (before OS X)

Mac OS X threats

Linux threats

Unix threats

Windows Mobile threats

Android OS threats

Windows 2000/ME threats

Windows 95/98 threats

Windows 3.1 threats

MS DOS threats

Palm OS threats

WebOS threats

BlackBerry OS threats

 

What file systems can it scan/what can't it scan?

Also, is NIS 2011 always scanning for threats constantly, non stop(like I think Avast does) or do you have to manually scan or wait for an idle time scan? 

Is non stop, constant scanning called "active" and manual scanning is called "passive"? If not what are the names?

 

Thanks in advance :)