A render farm is a network of computers working together to process large graphics that otherwise would take much longer to render. While this can be used to render any graphics, a render farm typically is only used with movie special effects and other graphics that are too large for one computer to effectively process. The processor in each computer communicates with the processors in other computers, so each one knows what the other computers are working on. Manager programs often are needed to coordinate each computer to ensure they are effectively working together on the graphics.