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Hang on to learn anything and everything about Mainframes. com is a comprehensive learning website for mainframe developers, both experienced and beginners. com has tutorials on various mainframe topics like COBOL, CICS, JCL, DB2, IDMS, IMS, VSAM etc. These tutorials are prepared by professionals with vast experience in mainframe development using COBOL, CICS, JCL, DB2, IDMS, IMS, VSAM etc. Physical Map and Symbolic Map.
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La web de los Geeks del Mainframe.