Electronics

Electronics
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Electronic Equipment & Supplies, Service & Repair
Electronics is the study of the flow of charge through various materials and devices such as semiconductors, resistors, inductors and vacuum tubes. All applications of electronics involve the transmission of power and possibly information. The main uses of electronic circuits are: The controlling and processing of data. The conversion to/from and distribution of electric power. Both these applications involve the creation and/or detection of electromagnetic fields and electric currents. While electrical energy had been used for some time prior to the late 19th century to transmit data over telegraph and telephone lines, development in electronics grew exponentially after the advent of radio. One way of looking at an electronic system is to divide it into 3 parts: Inputs - Electronic or mechanical sensors. These devices take signals/information from external sources in the physical world and convert those signals/information into current/voltage or digital signals within the system. Signal processors - These circuits serve to manipulate, interpret and transform inputted signals in order to make them useful for a desired application. Outputs - Actuators or other devices that transform current/voltage signals back into useful physical form.