IRC is a real time connection protocol, which is completely based on text. On the other hand, IRC servers allow many users to communicate amongst themselves through said protocol.
Well, X-Chat is an excellent IRC client, which brings the possibility for connecting with different IRC chat servers, where each one has numerous channels in diverse topics, orientations and tastes.
It has to be pointed out that said application does not need to have installed the famous mIRC as the majority of applications meant for communicating through IRC servers.
It has an extremely simple and understandable graphical interface, where any kind of user can perform the necessary tasks to start chatting with numerous persons.
In summary, X-Chat is a powerful tool and a real alternative when using IRC chat servers.