Electronics was earlier used by people in Twentieth Century to perform different circus or parlor tricks like little sparks of leaked current from a live wire or getting straight standing hairs just by touching a sphere containing static discharges. Vacuum tubes were the most primitive electronic devices that worked on the principal of thermionic discharge (discharges of electrons due to change in temperature from low to high above the threshold value). In modern age there are lots of electronic components like circuit boards, amplifiers, transistors, etc.

Electronics Engineering

The word ELECTONICS itself shows that it is study of the electrical discharges that happens due to electrons. As we all know electron is a charge bearing atomic particle which can flow, that gives the idea about how electricity flows from one point to another (it has to be from a higher point to a lower one). It is the branch of study that deals with low power devices which are mentioned later in this abstract.