Electronic Components

Electronic components, a package of metallic or lead pads connected through soldering creating electronic circuits. Usually, electronic components have different groups on different printed circuit boards and have differing functions. Electronic components are mechanically stable materials and are protected against other environmental influences through the use of a reliable synthetic resin. There are passive and active electronic components,
passive (resistors and capacitors) and active (transistors, integrated circuits and semiconductors).

Active components need to be powered in some way to make them work. Active components can also be used to amplify signals.
Capacitors and trimmers are for filtering, tuning and storing electric charge and signals.

Diodes and rectifiers control direction of the signal.
Resistors resist the flow of the signal, transistors amplify the signal.

An academic definition of electronics is the study and use of electronic devices that operate by controlling the flow of electrons or other electrically charged particles in devices. The design and construction of electronic circuits to solve practical problems is part of electrical, electronic and computer engineering.

The main use of electronic circuits is to control, process and distribute information and convert and distribute electric power. This involves the creation or detection of electromagnetic fields and electric current. While electricity had been used for a long time to transmit data over telegraphs and telephones, the development of electronics began in earnest with the advent of radio. Today, electronic devices perform a wide variety of tasks and progress has largely been measured in the reduction in physical size and increase in speed of the devices and circuitry. Digital integrated circuits, computer chips, have now become one gigahertz microprocessors.