IBM System z and mainframe systems

- CICS (Customer Information Control System) is an online transaction processing program from IBM that, together with the programming language, has formed over the past several decades the most common set of tools for building customer transaction applications in the world of large computing. A great number of the still in use are COBOL/CICS applications. Using the application programming interface ( provided by CICS, a programmer can write programs that communicate with online users and read from or write to customer and other records (orders, inventory figures, customer data, and so forth) in a database (usually referred to as "data sets") using CICS facilities rather than IBM's access methods directly. Like other transaction managers, CICS can ensure that transactions are completed and, if not, undo partly completed transactions so that the integrity of data records is maintained.
IBM markets or supports a CICS product for , and Intel PC operating systems. Some of IBM's customers use IBM's Transaction Server to handle transactions from Internet users and forward these to a mainframe server that accesses an existing CICS order and inventory database.

Learn more about IBM System z and mainframe systems

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