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(Memory based on flip-flops is known as static random-access memory (SRAM). The number of different analog circuits so far devised is huge, especially because a 'circuit' can be defined as anything from a single component, to systems containing thousands of components. Most analog electronic appliances, such as radio receivers, are constructed from combinations of a few types of basic circuits. Interconnection technologies such as circuit boards, electronics packaging technology, and other varied forms of communication infrastructure complete circuit functionality and transform the mixed components into a regular working system. Like Big Science, high technology is an international phenomenon, spanning continents, epitomized by the worldwide communication of the Internet.
In fact, many digital circuits are actually implemented as variations of analog circuits similar to this example—after all, all aspects of the real physical world are essentially analog, so digital effects are only realized by constraining analog behavior. (In 2012 it was demonstrated that memristors can be added to the list of available components.) Analog circuits are very commonly represented in schematic diagrams, in which wires are shown as lines, and each component has a unique symbol. Digital circuitry is used to create general purpose computing chips, such as microprocessors, and custom-designed logic circuits, known as application-specific integrated circuit (ASICs). The study of semiconductor devices and related technology is considered a branch of solid-state physics, whereas the design and construction of electronic circuits to solve practical problems come under electronics engineering. The following list of electronic components focuses on the discrete version of these components, treating such packages as components in their own right.
An electronic component is any physical entity in an electronic system used to affect the electrons or their associated fields in a manner consistent with the intended function of the electronic system.
Because the high-tech sector of the economy develops or uses the most advanced technology known, it is often seen as having the most potential for future growth.
In a series circuit, the same current passes through a series of components.