A microcontroller is a small computer on a single integrated circuit that can be used to control electronic devices. It consists of a central processing unit (CPU), memory, and input/output (I/O) ports. Microcontrollers are used in many applications, such as automobiles, appliances, and medical devices. Discover more A digital signal processor (DSP) is a specialized microprocessor designed for processing digital signals. DSPs are used in applications such as audio and video processing, telecommunications, and control systems. They can perform complex mathematical operations quickly and accurately.