Many companies run on SAP R/3 ABAP (1983) code or even still SAP R/2 ASM code. The ABAP code syntax is somewhat similar to COBOL: https://en.wikipedia.org/wiki/

Many companies run on SAP R/3 ABAP (1983) code or even still SAP R/2 ASM code. The ABAP code syntax is somewhat similar to COBOL: https://en.wikipedia.org/wiki/ABAP https://en.wikipedia.org/wiki/ABAP . And many banks still use PL/1 (1964) or COBOL (1959): https://en.wikipedia.org/wiki/PL/I https://en.wikipedia.org/wiki/PL/I and https://en.wikipedia.org/wiki/COBOL https://en.wikipedia.org/wiki/COBOL . And Fortran (1957) has still the best optimized compilers, surpassing often even C compilers: https://en.wikipedia.org/wiki/Fortran https://en.wikipedia.org/wiki/Fortran