Star Network Topology
The star network topology works well when workstations are at scattered points. It is easy to add or remove workstations. If the workstations are reasonably close to the vertices of a convex polygon and the system requirements are modest, the ring network topology may. A network topology is the arrangement of a network, including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology.
The term 'network topology' refers to the layout of a network. Due to the specific nature of computer network technology, networks must be arranged in a particular way in order to work properly. These arrangements are based on the network hardware's capabilities and the characteristics of the various modes of data transfer. Because of these factors, network topologies are further subdivided into two categories: physical topologies and logical topologies. Physical Topologies The physical topology of a LAN refers to the actual physical organization of the computers on the network and the subsequent guided transmission media connections.
Star Network Topology Cost
Physical topologies vary depending on cost and functionality. We will discuss the three most common physical topologies, including their advantages and disadvantages. Physical Bus The simplest form of a physical bus topology consists of a trunk (main) cable with only two end points.
When the trunk cable is installed, it is run from area to area and device to device—close enough to each device so that all devices can be connected to it with short drop cables and T-connectors. The principal advantage of this topology is cost: no hubs are required, and shorter lengths of cable can be used. It is also easy to expand. This simple 'one wire, two ends' physical bus topology is illustrated in Figure 10.
Star Network Topology Router
Figure 10: Physical bus topology Distributed Bus A more complex form of the physical bus topology is the distributed bus. In the distributed bus, the trunk cable starts at what is called a 'root' or 'head end', and branches at various points along the way. Unlike the simple bus topology described above, this variation uses a trunk cable with more than two end points.
Where the trunk cable branches, the division is made by means of a simple connector. This topology is susceptible to bottlenecking and single-point failure. The distributed bus topology is illustrated in Figure 11. Figure 11: Distributed bus topology Physical Star The simplest form of the physical star topology consists of multiple cables—one for each network device—attached to a single, central connection device. 10Base-T Ethernet networks, for example, are based on a physical star topology: each network device is attached to a 10Base-T hub by means of twisted-pair cable. In even a simple physical star topology, the actual layout of the transmission media need not form a recognizable star pattern; the only required physical characteristic is that each network device be connected by its own cable to the central connection point.
On Love Deluxe, Sade's calm, oh-so-cool and yet fragile vocals are reinforced by the minimal arrangements, so we are able to focus on her engaging lyrics filled with love, heartbreak and compassion. Features the hits 'No Ordinary Love' and 'Cherish The Day'. Product Details Limited 180gm vinyl LP pressing of this 1992 album from the sultry Pop/Soul vocalist. Sade love deluxe vinyl lp.