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[muhth -er-bawrd, -bohrd] /ˈmʌð ərˌbɔrd, -ˌboʊrd/

noun, Computers.
a rigid, slotted upon which other that contain the basic circuitry of a computer or of a computer component can be mounted.
Compare (def 14).
(in an electronic system) a printed circuit board through which signals between all other boards are routed
The main circuit board of a computer, usually containing the central processing unit and main system memory as well as circuitry that controls the disk drives, keyboard, monitor, and other peripheral devices.
(mobo) The main printed circuit board in an electronic device, particularly a computer, which may contain sockets that accept additional boards (“daughter-boards”).
In a personal computer, the motherboard contains the bus, the microprocessor, and integrated circuits used for controlling any built-in peripherals such as the keyboard, text and graphics display, serial ports and parallel ports, joystick, and mouse interfaces.


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