vCard: A file that contains a person's personal contact information that can be sent to others via e-mail.

virtual machine: A software creation that acts and operates like a separate computer within the primary computer.

virtual memory: The portion of your hard drive that Windows uses to expand the available RAM.

virtual private network; VPN: VPNs are sophisticated encrypted networks that are far more secure than your average wireless connection.

virus: A program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.