hubs, switches or routers.
Outbound interface
LAN
A router
LAN
A LAN Bridge. It is not a special computer per say. A LAN bridge connects two or more LANs at layer two in the OSI network model. The LAN bridge receives packets from a LAN segment connected to one port and forwards them to another LAN segment connected to a different port. While a LAN bridge serves the purpose of extending network range, it also relieves the problem of congestion that multiple devices can cause on a single Ethernet segment.
Yes
A Router/Modem
Connects the router to a single broadcast address. e.g. LAN
Connects the router to a single broadcast address. e.g. LAN
local area network
Local Area Network => Connects you via wired connection to your network.
MAN