Name several operating systems that run LANs today. Do not include different versions of a single operating system. For each operating system, list its name, the platform or network on which it operates and its distributer or manufacturer. Cite your sources.
2. Explain why network operating systems were phased out when distributed operating systems gained popularity.
3. Discuss at least three advantages of a hard-wired LAN compared to a wireless LAN and describe one situation where the wired LAN would be preferred.
4. Even though the OSI model of networking specifies seven layers of functionality, most computer systems use fewer layers to implement a network. Why do they use fewer layers? What problems could be caused by the use of fewer layers?