Single board computer
A standard computer system generally consists of several basic components, including a central processor, volatile and non-volatile memory, and various peripheral devices, including graphics controllers, mass storage devices, network interface devices, input/output devices, etc. A single board computer (SBC) is one in which all the essential computer components required to perform the desired computer function are substantially contained on a single printed wiring module or board. A single board computer (SBC) may consist of a processor or controller, a router, a switch, a storage system, a network appliance, a private branch exchange, an application server, a computer/telephony (CT) appliance, and so forth. The circuit board of a single board computer card looks like a typical add-on card of a computer system. The board comprises a CPU and all the system circuits of a regular computer motherboard. The CPU of a single board computer controls the operation of the computer and performs various types of input/output (I/O) operations, calculations and logical operations in accordance with computer program instructions. A backplane which has many slots for accepting add-on cards, provides connections between the add-on cards and the CPU through the backplane bus. The single board computer card plugs into one of the slots, transmits data and controls other add-on peripheral devices. In a computer system that contains a single board computer card, the computer card and a backplane work together to serve the function of a regular motherboard of a computer system. The single board computers are used for complicated industrial control, automaton, data gathering and other industrial and scientific applications. They may be used as controllers for other machines or large systems, and SBCs are often designed with this flexibility in mind.
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