Definitely exists for IBM zOS. RedHat Linux has also been ported to this platform; it's probably ASCII, but not sure. Oracle has a native client on zOS that d

Definitely exists for IBM zOS. RedHat Linux has also been ported to this platform; it's probably ASCII, but not sure. Oracle has a native client on zOS that does transparent conversion between ASCII and EBCDIC. It was probably built with such a compiler. There was a paper that the original port of Research UNIX ran as a client on an IBM TSS/370 kernel, which likely was not ASCII. https://gunkies.org/wiki/UNIX/370 https://gunkies.org/wiki/UNIX/370