This course provides the student with the practice following program specifications to design, develop, debug, and test COBOL programs using an IBM mainframe computer with the zEnterprise operating system. Emphasis is placed on structured programming techniques, logic structures, and modular design; along with the use of design tools such file layouts, print charts, structure charts, and pseudocode. Students are introduced to TSO logon procedures, JCL, the ISPF, and SDSF. Fundamental COBOL coding rules and syntax, sequential batch report file processing. arithmetic verbs, conditional control structures, utility sorting, control-break logic, and processing and searching single-level tables are presented.