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If you are a student or a professional facing down a legacy modernization project, your search for is justified. This text is superior to "COBOL for Dummies" or generic programming guides because it doesn't abstract away the mainframe. It forces you to deal with the reality of 3270 terminals, job submission, and abend debugging.
Because the book focuses on mainframe COBOL (not Micro Focus COBOL for Windows), it teaches the nuances of BYTE and CHAR , EBCDIC character encoding, and fixed-block file formats. murachs mainframe cobolpdf