Computer Network
The computer network are hosts connect among itself for share information, resources e applications. This comunication have many concepts behind this, concepts for software and hardware.
Web world today use model TCP/IP as a protocol group used for establish this communication. There two version know today, IPv4 e IPv6.
What's are hosts?
The hosts are any computer connect a network that have IP address and defined name. Of course that exists a many network categories, they refers until where the sinal have been distribution.
1m = Personal Area ; PAN
10m < X > 1km =Local Network ( Room, House, Campus ); REDE LAN
10km = Network City; REDE MAN
100km < X > 1.000km =Long Distant Network; REDE WAN
10.000 km = Global Network; exemple: INTERNET ( Web)
There also network topology and network arquitecture model. In computer network, for two devices have communication they must act under for same protocol. The most knowlegde protocol is HTTP, he transfer html pages server for client side.