Motherboard (System Board)

• Main hardware board of a computer.
• Connects all major components together.

Connected Components

• CPU → mounted directly on the motherboard.
• RAM → installed in memory slots.
• Other devices → connected through buses and slots.

Device Types

• Built-in components: CPU, RAM (directly attached)
• Add-on components: graphics card, sound card, network card (via bus)

System Variations

• Laptop → many components integrated.
• Desktop / Server → more expansion slots available.

Key Role : Allows communication between CPU, memory, and hardware devices.