Online Virtual Drive is proxy to different sources like mail accounts, online briefcase, online storage drive. Its WebDAV based drive that supports storing and retrieving the files.
See ram drive.
a drive that does not physically exist
a fictitious drive
Voice Drive consists of three new functions for greater convenience and safer driving while you are on the road. Voice Guide: Provides verbal confirmation of your selection when you are using the source and function keys. Voice Recognition: Switch head unit function by responding to your verbal commands. Voice Memo: Lets you record verbal notes or comments while driving.
A virtual drive is a term used with respect to computers when a drive is emulated in some fashion. The drive being emulated could be a hard drive, floppy drive, CD/DVD or a network share among others.