A workgroup is a collection of computers on a local area network (LAN) that share common resources and responsibilities. Workgroups provide easy sharing of files, printers and other network resources. Being a peer-to-peer (P2P) network design, each workgroup computer may both share and access resources if configured to do so.

In a workgroup:
  • All computers are peers; no computer has control over another computer.
  • Each computer has a set of user accounts. To log on to any computer in the workgroup, you must have an account on that computer.
  • There are typically no more than twenty computers.
  • A workgroup is not protected by a password.
  • All computers must be on the same local network or subnet.
How to find out if your computer is on a workgroup: 
  • Open System by clicking the Start button , right-clicking Computer, and then clicking Properties.
  • Under Computer name, domain, and workgroup settings, you will see either the word Workgroup or Domain, followed by the name.