In general we can say that native ASCII (American Standard Code for Information Interchange) is mostly used for personal computers and Unix systems. EBCDIC (Extended Binary Coded Decimal Interchange Code) is merely used for large computing systems like Mainframes (MVS, VSE, VM, BS2000, ..) and AS400.
Exchanging text files between these different type of systems is subject to code conversion or transcoding.
Below you will find a small tool to convert an ASCII text string to EBCDIC, represented in hexadeicmal values and converted text string.