Short for Customer Information Control System, a TP monitor from IBM that was originally developed to provide transaction processing for IBM mainframes. It controls the interaction between applications and users and lets programmers develop screen displays without detailed knowledge of the terminals being used.
Short for Database 2, a family of relational database products offered by IBM. DB2 provides an open database environment that runs on a wide variety of computing platforms. A DB2 database can grow from a small single-user application to a large multi-user system. Using SQL, users can obtain data simultaneously from DB2 and other databases. DB2 includes a range of application development and management tools.
After data migration from VSAM to DB2, using XTSOFT software VSAM2DB2,vsam request on a migrated file is intercepted by VSAM TRANSPARENCY and is automatically converted to a DB2 request in a transparent way , no need to compil or modify existing programs.
Short for Virtual Storage Access Method, a file management system used on IBM mainframes. VSAM speeds up access to data in files by using an inverted index of all records added to each file.