What is CICS?
CICS stands for “Customer Information Control System.” It is a general-purpose transaction processing subsystem for the z/OS operating system. CICS provides services for running an application online, by request, at the same time as many other users are submitting requests to run the same applications, using the same files and programs. CICS manages the sharing of resources, the integrity of data and prioritization of execution, with fast response. CICS authorizes users, allocates resources (real storage and cycles), and passes on database requests by the application to the appropriate database manager (such as DB2). We could say that CICS acts like, and performs many of the same functions as the z/OS operating system. A CICS application is a collection of related programs that together perform a business operation, such as processing a travel request or preparing a company payroll. CICS applications execute under CICS control, using CICS services and interfaces to access programs and
When you think of Big Business, you think of Fortune 500 companies. When you think of Big Business software, you think of companies like IBM and Oracle. It’s IBM in this case that is the author of CICS, Customer Information Control System, which is also used by a wide variety of financial institutions, colleges and universities, airline reservation systems, insurance companies, ATM systems, and state and national governments. CICS is a transaction processing system that can handle both small and large numbers of transactions, although it is designed mainly for huge numbers. The top transaction number so far recorded is in the several thousands per second. The functionality extends from traditional mainframes to online batch activity as well. Not one to be left behind, IBM has versions of CICS that are Web-based and incorporate Enterprise Java Beans. Far from being just a transaction handler, CICS performs all manner of other important system functions as well, including batch job submi
CICS stands for Customer Information Control System that is a very powerful transaction processing system. It is most widely used by financial institutions, colleges and universities, airline reservation systems, insurance companies, ATM systems, as well as state and national governments. CICS can also perform other important task like batch job submissions, catalog updating, domain management, and application bridging. CICS is written in Web-based and incorporate Enterprise Java Beans language for handling the big number of transaction but is able to handle small transaction as well. It also provide online batch activity as well. CICS was originally developed in the U.S. in 1969 for small and medium mainframe systems. It can run on various operating system including z/VSE, i5, OS/2, AIX, Linux, Mac OS, and Windows as well as IBM’s 64-bit z/OS.
