Which U.S. department initially developed the Ada programming language?

The U.S. Department of Defense initially developed the Ada programming language. More precisely, the department sponsored and managed the language project, while Honeywell led the winning design team under Jean Ichbiah.

During the 1970s, the department was concerned that its embedded-systems projects used hundreds of incompatible or aging languages. Its High Order Language Working Group created requirements emphasizing reliability, modularity, portability, error checking, and concurrent programming.

The resulting competition produced several proposals, including Red, Green, Blue, and Yellow. The selected language was named Ada in honor of Augusta Ada King, Countess of Lovelace. It was later standardized for defense use as MIL-STD-1815 in 1980, a number honoring Lovelace’s birth year, 1815.

A common mix-up is attributing Ada’s creation solely to Ada Lovelace. She inspired the name and was an early computing pioneer, but the 20th-century language was commissioned by the Department of Defense and designed by a modern software team.