A transistor is a semiconductor device, commonly used as an amplifier. The transistor is the fundamental building block of the circuitry that governs the operation of computer, Cellular phone, and all other modern electronics. Because of its fast response and accuracy, the transistor may be used in a wide variety of digital and analog functions, including amplification, switching, Voltage regulator, signal Modulation, and Oscilator Transistors may be packaged individually or as part of an IC chip, which may hold thousands of transistors in a very small area.
