oooo, it spoke Fortran! I'll bet that that Window on the wall used tubes.
By the early 1970's only had a few choices in programming languages.
IBM has some strange ones, such as RPG and APL.
Personal note: APL was the first computer language that I ever learned!
FORTRAN and COBAL were the primary languages used, but BASIC was rapidly becoming an alternative. However, being innovative in the IBM controlled world, was almost impossible.
If you were a scientist, FORTRAN was the only language that you were allowed to use.
If you were a bank, then COBAL was the only language that you were allowed to use.
Anything else, was bucking against the endorsed computer languages provided by IBM.