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<p><b>New page</b></p><div>[[file:IBM_CICS_Transaction_Server_for_z-OS_app_icon.svg|thumb|left]] '''CICS''' (Customer Information Control System) is a [[transaction processing]] system that was developed by [[IBM]] in 1968. It is designed to support high-volume [[online transaction processing]] (OLTP) applications. CICS is widely used in the [[banking]], [[finance]], [[insurance]], and [[retail]] industries, among others.<br />
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==History==<br />
CICS was first introduced by IBM in 1968 to address the need for a system that could handle a large number of transactions quickly and efficiently. Over the years, CICS has evolved significantly, incorporating new features and capabilities to meet the changing needs of businesses and technology advancements.<br />
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==Architecture==<br />
CICS operates on the [[IBM mainframe]] platform, specifically the [[z/OS]] operating system. It is designed to manage and execute multiple transactions simultaneously, ensuring data integrity and consistency. The architecture of CICS includes several key components:<br />
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* '''Transaction Manager''': Manages the execution of transactions and ensures that they are processed in a reliable and efficient manner.<br />
* '''Resource Manager''': Handles access to various resources such as [[databases]], [[files]], and [[queues]].<br />
* '''Application Server''': Executes the business logic of the applications running on CICS.<br />
* '''Communications Manager''': Manages communication between CICS and other systems or devices.<br />
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==Features==<br />
CICS offers a wide range of features that make it a powerful and flexible transaction processing system:<br />
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* '''High Availability''': CICS is designed to provide continuous availability, ensuring that transactions can be processed without interruption.<br />
* '''Scalability''': CICS can handle a large number of transactions and can be scaled to meet the needs of growing businesses.<br />
* '''Security''': CICS includes robust security features to protect sensitive data and ensure that only authorized users can access the system.<br />
* '''Interoperability''': CICS can integrate with various other systems and technologies, including [[web services]], [[Java]], and [[MQSeries]].<br />
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==Usage==<br />
CICS is widely used in industries that require high-volume transaction processing. Some common use cases include:<br />
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* [[Banking]]: Processing customer transactions, managing accounts, and handling payments.<br />
* [[Insurance]]: Managing policy information, processing claims, and handling customer inquiries.<br />
* [[Retail]]: Managing inventory, processing sales transactions, and handling customer orders.<br />
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==Future Developments==<br />
IBM continues to invest in the development of CICS, adding new features and capabilities to meet the evolving needs of businesses. Future developments may include enhanced support for [[cloud computing]], improved integration with modern technologies, and increased automation capabilities.<br />
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==See Also==<br />
* [[IBM mainframe]]<br />
* [[z/OS]]<br />
* [[Online transaction processing]]<br />
* [[MQSeries]]<br />
* [[Web services]]<br />
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==References==<br />
{{Reflist}}<br />
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==External Links==<br />
{{Commons category|CICS}}<br />
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[[Category:IBM software]]<br />
[[Category:Transaction processing]]<br />
[[Category:Mainframe computers]]<br />
[[Category:1968 software]]<br />
[[Category:Computer-related introductions in 1968]]<br />
[[Category:Software stubs]]<br />
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