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Chapter 1. Introducing Computer Networks > Defining a Network - Pg. 4

4 CompTIA Network+ N10-005 Authorized Cert Guide Foundation Topics Defining a Network It was in the movie A Field of Dreams where they said, "If you build it, they will come." That phrase most certainly applies to the evolution of network-based ser- vices seen in modern-day networks. Computer networks are no longer relegated to allowing a group of computers to access a common set of files stored on a computer designated as a file server . Instead, with the building of high-speed, highly redundant networks, network architects are seeing the wisdom of placing a variety of traffic types on a single network. Examples include voice and video, in addition to data. One could argue that a network is the sum of its parts. So, as you begin your study of networking, you should grasp a basic understanding of fundamental networking components. These components include such entities as a client, server, hub, switch, router, and the media used to interconnect these devices. The Purpose of Networks