There are different types of slots in a motherboard.
Here are the definitions of the slots that are present in a PC motherboard:
1.AGP
The AGP, or Advanced Graphics Port, is used to contain video cards. It is highly recommended (and more practical) that only motherboards with AGP slots be considered to be bought.
2.AMR
The AMR, or Audio Modem Riser, is a type of slot that is utilized for Audio / Modem cards and is found on some motherboards. The Audi Modem Riser is not a very critical slot and has recently been replaced by the CNR (Communication and Network Riser).
To be Continued…