What was the name of the fast-service system created by McDonald's founders in 1948?

The McDonald brothers created the Speedee Service System in 1948.

Richard and Maurice McDonald developed the system after reorganizing their San Bernardino, California, restaurant around a limited menu and assembly-line preparation. The approach emphasized standardization, speed, low prices, and high-volume production. It became a foundational model for the modern fast-food restaurant.

The system’s name was connected to Speedee, an early McDonald’s mascot who represented quick service. Customers received a narrower selection of food, while workers performed specialized tasks designed to make preparation more consistent. This was different from a conventional drive-in restaurant, where carhops and a broad menu were more common.

Ray Kroc later helped expand the McDonald’s model through franchising, but he did not create the original Speedee Service System. That distinction is a frequent source of confusion in McDonald’s history. The system’s influence extended beyond McDonald’s, helping popularize standardized fast-food operations across the restaurant industry.