Final answer:
PWM stands for Pulse Width Modulation. It is a technique used in electronics and computer systems to control the amount of power delivered to a device.
Step-by-step explanation:
PWM stands for Pulse Width Modulation. It is a technique used in electronics and computer systems to control the amount of power delivered to a device. This is typically achieved by rapidly switching a digital signal between on and off states, with varying durations of each state. By varying the width of the pulse, the average power delivered can be adjusted, allowing for precise control of devices such as motors, LEDs, and audio signals.