DIGITAL, IBM and HP typically supplied COBOL compilers with their relevant big iron systems and a lot of time the actual code base will be tied so closely to a

DIGITAL, IBM and HP typically supplied COBOL compilers with their relevant big iron systems and a lot of time the actual code base will be tied so closely to a greater framework provided by/for those platforms that just being able to compile COBOL on an different environment is the least part of the migration process.