mainboard

US /ˈmeɪn.bɔːrd/
UK /ˈmeɪn.bɔːrd/
1.

bo mạch chủ

the main printed circuit board that contains the CPU (= central processing unit) of a computer and makes it possible for the other parts of a computer to communicate with each other:

:
The keyboards in most laptops are connected to the mainboard by a thin flat ribbon cable.