Mainframes

Introduction to CICS CICS Stands for Customer Information Control System Why CICS ➤ The main drawback of the batch sytem is multiple processes should not able to run at the same time and the process will not complete instantly. ➤ So, CICS is introduced by IBM in the 1960's to overcome above issue and to support online programming on Mainframes. ➤ It acts...

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Basic Concepts of CICS(Customer Information and Control System) In CICS environment, the tasks can be executed by using the transaction id. Transaction: Transaction is a logical unit of work that terminal user can invoke(సహాయం కోరు). It is unique identifier which is used to execute or start particular task. CICS is called to be transaction driven, because every transaction or program can be invoked...

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Explanation of Identification Division A Division is a block of code, which contains one or more sections or set of sections or set of sentences or block of statements. It begins with division name and ends at the beginning of the next division or at the end of the program. Divisions are known as system defined words. All Divisions should be coded in...

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Structure of COBOL Program The Structure of the Cobol applies for COBOL Source Program which has set of syntactically correct set of statements. In other words, COBOL Source Program contains set of syntactically correct set of statements. Cobol Programs contains hierarchical in structure which was shown in the above diagram. The COBOL Program hierarchy consists of Divisions, Sections, Paragraphs, Sentences and Statements. In...

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