0 What is Internet Relay Chat (IRC)???

IRC is an internet wide talk facility developed by Jarkko  oikarinen in Finland in 1988. The IRC Service provides a way for many users to communication about a given topic.Each  communication occurs on a separate 'channel'.A user who creates a channel chooses a topic and specifics whether the channel is open to anyone or restricted to the group of people specified  by the channel creator.A user can request a list of the IRC channels currently in progress,and can choose to join one of the channels. When a user join IRC channels ,the user enters a nickname that IRC user to identify the user to other.Users often choose nickname that disguise their identity

0 RAID

RAID stands for Redundant array of inexpensive Disks,a means of improving network performance and ensuring data integrity and security by storing information on multiple disk drives. Different levels of RAID security can be implemented,Depending on the level of Reliability And performance desired.