Virtual reality (VR) is a technology that creates a simulated environment, typically experienced through a headset or other wearable device. VR is used in many applications, such as gaming, education, and training. Popular VR platforms include Oculus VR, HTC Vive, and PlayStation VR. Read the article 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.