The IDE interface contains two IDE device connections and two motherboard connectors for two data cables. An IDE-integrated controller sends an array of 512-byte blocks between the drive and motherboard.
N.I.C. -Network Interface Card
The N.I.C. is a way for the internet to get into the computer.
When the C.P.U. needs data from the R.A.M. , a request is sent to the Northbridge memory controller.
R.A.M.-Random access memory
A R.A.M. makes computers access information faster.
U.S.B.-Universal Serial Bus
A U.S.B. helps you store your stuff like music,photos,videos e.c.t.