The fundamentals of network communication today have not completely changed over the past 50 to 60 years. In fact, many of the same theories and concepts are still the same. Research and list 4 of the common network topologies that have been used in businesses over the past few decades. You will indicate which of these typologies are still in use today, and why they are still in use today. You will also indicate what types of resources and devices are commonly used within these topologies. For instance, in a star topology, is a router or a switch required? Additionally, list how a current operating system needs to be properly configured in order to support all of these devices across the topology. Submit your work in a 2-3 page APA-formatted paper.