In Tree Topology, all the computer are connected like the branches of a tree. In Computer Networking, tree topology is known as a combination of a Bus and Start network topology. The main advantages of this topology are better flexibility and scalability.
In Mesh Topology, all the computers are inter-connected to each other in a network. Each computer not only sends its own signals but also relays data from other computers. This type of topology is very expensive as Its very difficult to establish the connections of the mesh topology. In a Mesh topology every node has a point-to-point connection to the other node. The connections in the mesh topology can be wired or wireless.
A bus topology consists of a single cable with the terminator at each end. All present nodes are connected to the single cable. There is no limit to the no: of nodes that can be attached to this network, but the no: of connected nodes can actually affect the performance of the network.
Point to Point topology is the simplest topology that connects two nodes directly together with a common link. The entire bandwidth of the common link is reserved for transmission between those two nodes. The point-to-point connections use an actual length of wire or cable to connect the two ends, but other options, such as satellite links, or microwaves are also possible.
In Start Topology, all the computers are connected to the central located device called as hub. All the devices on the network are connected with a hub device through a communication link. Each computer requires a single wire for the connection to the hub.
In Ring Topology, each device/node is connected with its neighboring node forming the shape of ring hence it is known as Ring Topology. In ring topology the data circulate from one computer to another. The flow of the data in ring topology can be uni-directional or bi-directional.