how to establish lan connection

i wanna establish lan connection .
please give the complete information about it.
and what type of hardware is required.
i don't have net connection.
please give complete details about this topic.

Are you saying that you want to network some computers even though you don't have internet access? If that's the case, the easiest thing to do is buy a router and some cat5 cables. Connect all the PCs to the LAN ports on the router.

If you want any more detail, we need more detail too. What PCs do you have and what are they running? Are they located in different rooms?