Electronic components are the basic building blocks of electronic devices. They are used to control the flow of electricity and perform various functions within a circuit. Common examples include resistors, capacitors, diodes, and transistors. Each component has a specific role, such as storing energy, limiting current, or amplifying signals. These components can be found in a wide range of devices, from simple gadgets like calculators to complex systems like computers and smartphones. Understanding how these components work together is essential for designing and troubleshooting electronic circuits, making them crucial for engineers and hobbyists alike.