SYSTEM BOARD




The system board is also known as the motherboard. The system board controls communications for the entire computer system. Every component of the system unit connects to the system board. It acts as a data path and traffic monitor, allowing the various components to communicate efficiently with one another: External devices such as the keyboard, mouse, and monitor could not communicate with the system unit without the system board. On a desktop computer, the system board is typically located at the bottom of the system unit or along one side. It is a large flat circuit board covered with a variety of different electronic compo nents including sockets, slots, and bus lines.
• Sockets provide a connection point for small specialized electronic parts called chips. Chips consist of tiny circuit boards etched onto squares of sandlike material called silicon. These circuit boards can be smaller than the tip of your finger. A chip is also called a silicon chip, semiconductor, or integrated circuit. Chips are mounted on carrier packages. These packages either plug directly into sockets on the system board or onto cards that are then plugged into slots on the system board. Sockets are used to connect the system board to a variety of different types of chips, including micro processor and memory chips.
•Slots provide a connection point for specialized cards or circuit boards. These cards provide expansion capability for a computer system. For example, a modem card plugs into a slot on the system board to provide a connection to the Internet.
•Connecting lines called bus lines provide pathways that support communication among the various electronic components that are either located on the system board or attached to the system board. 

          Notebook, tablet PC, and handheld system boards are smaller than desktop system boards. However, they perform the same functions as desktop system boards.

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