Where did the term 'Electronics' come from actually? The word 'Electronic' comes from the Greek word 'Elektron'. You can say that it is two words put together; the terms 'Electron' and 'Technology'. Electronics is therefore the technology of electrons. Electronics can be subdivided into five categories:
• Analog electronics
• Digital electronics
• Logical functions of digital electronics
• High frequency electronics
• Power electronics
Here you will become familiar with three of these areas in detail: Analog and digital electronics and logical functions of digital electronics. Analog electronics deals with changes in physical states in relation to time and value. In analog technology a signal can therefore assume many values over a certain period of time (flashing frequency of a light). Digital electronics deals with processing of signals. In digital electronics only values of '1' and '0' are represented and processed.
