AC Adapter
Audio Board
Battery
CMOS Battery
Hard Drive
HeatSink & Fan
Inverter Board
Keyboard
LCD Cable
LCD Screen
Memory
Motherboard
Optical Drive
Processor
Touchpad
Video Card
Motherboard or Mainboard
The motherboard is the board that all internal laptop components are connected to. Motherboards in laptop computers are different than desktop motherboards because they do not have to adhere to a specific form factor like desktop motherboards do (AT, ATX), they are designed and shaped differently for every laptop. Also, laptop motherboards are not as upgradeable because many components like video and audio are integrated into the motherboard and they may have no expansion slots available at all.