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You can have thousands of computers in a LAN, but for efficiency, and administrative purposes, a large LAN is usually divided into subnets, that are interconnected among themselves.
All devices on a LAN are called nodes.
Its LAN
A wired LAN uses wires to connect the computers but a wireless LAN uses radio waves.
Your question is quiet confusing but if you are asking for the protocol for a computer inside the LAN to be able to communicate through the internet then it is the TCP/IP.
lan
Buy a lan router, they can be used with lan cable or wireless to connect all your computers through a network. If there are only two computers that you wish to connect then you only need on lan cable which you connect in the back of each of those two computers to create a network.
You know what a LAN is. Its a small group of computers all hooked up together. These computers are all hooked together by wires. And its the LAN card (nic as its more commonly known) that the wire plugs into in the computer.
Your question doesnt make much sense. Lan technology is the equipment used to make computer networks. There is no LAN standard, there are many "standards" in networking
no, A LAN is a network between a small amount of computers through a router , hub or switch
RJ-45 connect it to the computers
Switch