Chapter 1 Questions
7. How do local area networks (LANs) differ from metropolitan area networks (MANs), wide area networks (WANs), and backbone networks (BNs)?
Local area networks (LANs) consist of microcomputers located in a same general area. LANs usually share circuits where computers take turns using the same circuit. In a metropolitan area networks (MANs), a network usually covers a citywide area. Wide area networks (WANs) span a large geographical area. WANs span a larger area than MANs. Backbone networks (BNs) interconnect all networks on a single site. BNs is a large network which many networks within an organization are connected.
14. Explain how a message is transmitted from one computer to another using layers.
Each computer in the network has software that operates at each of the layers and performs the functions required by those layers. Each layer in the network uses a formal …show more content…
Technology and Evolution a. As you will discover this week through your studies, communications have gone through some major changes throughout history. Explain how information systems from the 1980s differ from information systems today. What networking and communications changes were introduced in the past decade (2000s), and what were their implications? i. Throughout the years there has been many advances in communications and technology. In the 1980s the microcomputer revolutionized the way computers were used. They were used only by major information systems applications, but later used by individuals to create spreadsheets. As technology progressed by the 1990s, computers became to be connected with one another through a network. From the early 1980s to the 2000s, we have seen advancement in technology. Computers used to be only stationary, but now are mobile. Processors have gotten smaller yet provide plenty of speed and power. William had stated a good point in that advancement in technology follows Moore’s