Motherboard

Motherboard is a main part of a computer. It’s a circuit board that contains many connectors and chips on it for connecting hardware devices like,

CPU socket
CPU fan connector
CPU fan and heatsink mount
Power connector
Memory Slot
Bios flash chip
Southbridge
Backup battery
Integrated graphic processor
PCI slot
Integrated audio codec chip
Integrated gigabit Ethernet chip
PCI express slot
Connector for Speaker, USB, Keyboard, Mouse, Monitor, etc
Super IO chip
Floppy drive connector
IDE connector
SATA connector