Windows 7 is moving toward the cloud – sort of. In the latest release of Windows 7, you now have to the ability to easily join a network of other Windows 7 PC’s.
So let me first define what a network is. A network would be something that you establish within your home on your wireless internet connection. So your wireless internet at your house is the network upon which multiple Windows 7 PC’s can join.
However, you do need to create a network for others running Windows 7 to see.
And here’s a short video telling you mor. The video quality isn’t that great, but it should help you understanding HomeGroup in Windows 7: