The Pentagon operates the oldest computer program still in use – from 1958
By Blake
In 1958, the DoD’s first contracting software was launched, using an early computer language called COBOL. As of 2017, that software still manages Pentagon contracts.
According to Technology Review, the program known as MOCAS, Mechanization of Contract Administration Services, began its life on punchcards. Eventually it was updated to green screened, terminal-style computers.
oldest computer program
http://www.wearethemighty.com/articles/the-pentagon-operates-the-oldest-computer-program-still-in-use-from-1958“Then America falls. Is that what you want, Janet?”