What was the name of McDonald’s first major restaurant service system, introduced in 1948?

McDonald’s first major restaurant service system, introduced in 1948, was called the Speedee Service System.

Richard and Maurice McDonald developed the system after reorganizing their San Bernardino, California, restaurant. They reduced the menu, standardized preparation, used assembly-line methods, and emphasized quick service. The approach drew inspiration from industrial production and allowed the restaurant to serve inexpensive food much faster than a traditional drive-in.

The name “Speedee” was also represented by an early chef-like mascot. That character visually connected the restaurant’s promise of speed with its branding, while the operating system itself became the foundation for the modern fast-food format.

The Speedee Service System is sometimes confused with the later Golden Arches identity or with the name of the first McDonald’s mascot. Those elements were related parts of the brand’s history, but the service model introduced in 1948 carried the full name Speedee Service System.