even processing power. Another type of network architecture is known as a peer-to-peer architecture because each node has equivalent responsibilities. Both client/server and peer-to-peer architectures are widely used, and each has unique advantages and disadvantages. Client-server architectures are sometimes called two-tier architectures. The gurus of the client/server architecture do not use the terms fat client and the fat servers on the contrary they refer to them are 2-tier, 3-tier and N-tier client/server