The concept of HomeGroups was introduced in Windows 7
What's a homegroup?
HomeGroups simplify file and printer sharing between computers running Windows 7 on the same home network.
Two or more Windows 7 computers can share documents and media, including stream the media between computers; and also connect printers.
You can get to this from the
Charms >
Settings >
More PC Settings >
HomeGroup
There are several different options here.
You can join a Homegroup by typing in the password.
Below that, you can decide to share certain types of files on your computer:
■ Documents
■ Music
■ Pictures
■ Videos
■ Printers and Devices