INFORMATION MANAGEMENt

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INFORMATION MANAGEMENT SYSTEM

IMS (Information Management System) is a database and transaction management system that was first introduced by IBM in 1968. Since then, IMS has gone through many changes in adapting to new programming tools and environments. IMS consists of two major components,  IMS Database Management System (IMS DB)  IMS Transaction Management System (IMS TM). In IMS DB, the data is organized into a hierarchy. The data in each level is dependent on the data in the next higher level. The data is arranged so that its integrity is ensured, and the storage and retrieval process is optimized. IMS TM controls I/O (input/output) processing, provides formatting, logging, and recovery of messages, maintains communications security, and oversees the scheduling and execution of programs.

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