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printed circuit board Last modified: Wednesday, November 12, 2003
Sometimes abbreviated PCB, a thin plate on which chips and other electronic components are placed. Computers consist of one or more boards, often called cards or adapters. Circuit boards fall into the following categories: motherboard : The principal board that has connectors for attaching devices to the bus. Typically, the mother board contains the CPU, memory, and basic controllers for the system. On PCs, the motherboard is often called the system board or mainboard. expansion board : Any board that plugs into one of the computer's expansion slots. Expansion boards include controller boards, LAN cards, and video adapters. Daughtercard : Any board that attaches directly to another board. controller board: A special type of expansion board that contains a controller for a peripheral device. When you attach new devices, such as a disk drive or graphics monitor, to a computer, you often need to add a controller board. Network Interface Card (NIC) : An expansion board that enables a PC to be connected to a local-area network (LAN). video adapter: An expansion board that contains a controller for a graphics monitor. Printed circuit boards are also called cards. Sponsored listings Printed Circuit Boards - Prototype PCB fabricator with extensive experience with controlled impedance, buried resistors, microvias, and high density interconnects. Minco: Printed circuit board - Manufactures critical components for critical applications, including integrated thermofoil heaters, flex circuits, sensors, and instruments. GlobalSpec.com: Printed Circuit Boards - Provides database of suppliers for printed circuit boards. Includes catalogs, technical information, and supplier contact information.		Related Categories Hardware Motherboards Related Terms backplane chip CNR controller daughtercard expansion board expansion slot fab fabless FC-PGA form factor local-area network motherboard PGA server blade silicon video adapter printed circuit board Products : Top Store Offers: eBay  13.38eBay offers you smart deals and the widest selection, ranging from the everyday basics to things that are as unique as yourself. With millions of item... eBay  49.00eBay offers you smart deals and the widest selection, ranging from the everyday basics to things that are as unique as yourself. With millions of item... eBay  49.00eBay offers you smart deals and the widest selection, ranging from the everyday basics to things that are as unique as yourself. With millions of item... eBay  49.00eBay offers you smart deals and the widest selection, ranging from the everyday basics to things that are as unique as yourself. With millions of item... Amazon  12.53For printed circuit boards, switches, telephones, PCs, motors, relays, generators, edge connectors, tape heads, buss bars, circuit breakers, plastics ... Compare all matches: 0 Store Offers
PCB Design Conference Information Provides details on upcoming PCB Design conferences. Printed circuit board fabricators home page The Printed Circuit Board Fabricators home page, sponsored by RD Chemical, offers advice and insights on the process for producing a printed circuit board. Each fabrication process is described in great detail. In addition, this site offers a question and answer section, as well as links to related Web sites.