Write a paper for describing how devices work. Here are the requirements:
o    Describe network devices and how they operate (be sure to include a hub, switch, router, server, firewall, access point, and cable modem).
o    Describe the difference between the OSI and TCP/IP models.
o    Describe protocols within the TCP/IP model.
o    Describe at which layer of the TCP/IP model each network device operates.