What is networking?

you just answered your own question, Algreen; Routers, addressing, EIGRP, OSPFv2 + 3, VLSM, CIDR, the OSI model, Ethernet networking, Data encapsulation, TCP/IP, the IOS command line, Layer 2 switching, VLANS, IPv6, WAN networks, Etherchannel, STP, VPN......;)

media is just media.....Linux and MS are operating systems.....