Logic gates are the building blocks of digital circuits, performing basic logical functions like AND, OR, and NOT.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

Learn about deductive reasoning through examples and practice problems on Khan Academy.

Nossa missão é oferecer uma educação gratuita e de alta qualidade para qualquer pessoa, em qualquer lugar.

Si estás viendo este mensaje, significa que estamos teniendo problemas para cargar materiales externos en nuestro sitio. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.