Transistors

Transistors are semiconductor devices used to amplify or switch electronic signals. They are the building blocks of modern electronics, found in everything from small radios to complex computer systems. Transistors come in various types, such as bipolar junction transistors (BJTs) and field-effect transistors (FETs), each serving different functions.

In amplifiers, transistors boost weak signals to stronger levels, making them essential in audio and radio frequency applications. As switches, transistors control the flow of current in digital circuits, enabling the creation of logic gates and microprocessors. Their versatility and functionality make transistors critical components in both analog and digital electronics.