Star
Star
star topology. Because they include a centralized connection point; can easily be moved, isolated, or interconnected with other networks; they are, therefore, scalable. For this reason, and because of their fault tolerance, the star topology has become the most popular layout used in contemporary LANs.
Topology is always useful when looking at how a network is physically constructed or wired. This gives the network technician some idea of how the network is put together when diagnosing problems.
You are thinking ring topology. Not used much today.
Network topology is the way a computer network is set up and arranged, Examples for possible topologies include ring, star, bus, and line. Each of these topologies have their advantages and disadvantages, with star being the most common in today's world.
TCP/IP
If the server dies, the computers get unseen for each other. It isn't a good idea in every situation to leave the whole network to only 1 computer, because if it ets an error, your network is dead.
No, today virtually all networks use some variation of a star topology. It's far less subject to failure.
The history of network topologies dates back to 1969-1970. This what when Roberts, who is now known as Dr. Howard, started researching on network topologies and founded Network Analysis Corporation.
1. Copper UTP (Unshielded Twisted Pair) 2. Optical Fiber
If it is for a school then there may not be more than 15 students per batch, so depending upon the no of desktops one can go for bus topology since, it is faster, easy to install and cheaper and there is no issue of middle device like switch of hub.
Today, it is Cat5 that is commonly used, with RJ45 male ends.