Direct current (DC) is a type of electric current where the electrical charge flows in a single, consistent direction. This steady unidirectional flow contrasts with alternating current (AC), which periodically reverses the direction of the charge flow. DC is the primary form of power used by many sensitive electronic components, including microprocessors, rechargeable batteries, and LED lighting systems, because these devices require a stable, one-way voltage potential for operation. Generation of DC often involves converting AC power sources through a process called rectification, which changes the cyclical waveform into a unidirectional flow suitable for various specialized technological applications and energy storage systems.