Integrated Circuits (ICs) are the fundamental building blocks of modern electronics, integrating complete circuits—from transistors and resistors to complex logic—onto a single miniature chip. This integration enables the advanced functionality, compact size, and high reliability of virtually all electronic devices. By performing dedicated functions as unified components, such as processing data in microcontrollers, amplifying signals with op-amps, or regulating power, ICs simplify design and improve system performance. Key types include microcontrollers (MCUs), memory chips, analog-to-digital converters (ADCs), operational amplifiers, and power management ICs, each serving critical roles in applications from consumer gadgets and automotive systems to industrial automation and communication infrastructure.