Introduction to motherboard

Motherboard:-

              The motherboard (also known as  mainboard, system board, planar board or logic board, or colloquially, a mobo) is the main circuit board inside the PC. It holds the processor, memory and expansion slots and connects directly or indirectly to every part of the PC. It's made up of a chipset, some code in ROM and the various interconnections or buses.

              PC designs today use many different buses to link their various components. Wide, high-speed buses are difficult and expensive to produce: the signals travel at such a rate that even distances of just a few centimeters cause timing problems, while the metal tracks on the circuit board act as miniature radio antennae, transmitting electromagnetic noise that introduces interference with signals elsewhere in the system.

               For these reasons, PC design engineers try to keep the fastest buses confined to the smallest area of the motherboard and use slower, more robust buses, for other parts.

                  A motherboard is the main printed circuit board (PCB) found in computers and other expandable systems. It holds many of the crucial electronic components of the system, such as the central processing unit (CPU) andmemory, and provides connectors for other peripherals. Unlike a backplane, a motherboard contains significant sub-systems such as the CPU.

               

                Motherboard specifically refers to a PCB with expansion capability - the board is the "mother" of all components attached to it, which often include sound cards, video cards, network cards, hard drives or other forms of persistent storage, TV tuner cards, cards providing extra USB or Firewire slots, and a variety of other custom components.

Design for motherboard:-

                A motherboard provides the electrical connections by which the other components of the system communicate. Unlike a backplane, it also connects the central processing unit and hosts other subsystems and devices.

              A typical desktop computer has its microprocessor, main memory, and other essential components connected to the motherboard. Other components such as external storage, controllers for video display and sound, and peripheral devices may be attached to the motherboard as plug-in cards or via cables, in  modern        

computers it is increasingly common to integrate some of these peripherals into the motherboard itself.

             An important component of a motherboard is the microprocessor's supporting chipset, which provides the supporting interfaces between the CPU and the various buses and external components. This chipset determines, to an extent, the features and capabilities of the motherboard.