They absolutely are. Modern COBOL (even 25 year old COBOL) isn't running on ancient System360/370/390s or something, it's running on modern z/OS mainframes.
Yup, Z/OS even has an AIX subsystem these days. I have had to use it for some java decryption software and to use it to do some ebcdic to ascii conversion.
Yup, Z/OS even has an AIX subsystem these days. I have had to use it for some java decryption software and to use it to do some ebcdic to ascii conversion.