These sources extensively detail the development and historical significance of Project Whirlwind, a pioneering digital computer effort led by the Massachusetts Institute of Technology (MIT) and initially funded by the U.S. Navy. Born from the need for advanced anti-submarine warfare capabilities and later adapted for air defense, the project grappled with technical hurdles like unreliable vacuum tubes and slow memory, ultimately leading to the invention of magnetic-core memory. The texts also highlight the complex administrative and financial challenges faced by Whirlwind, illustrating the tension between innovative engineering and governmental fiscal oversight, particularly as the project transitioned from naval to Air Force sponsorship, paving the way for systems like SAGE.