Full Forms Of Frequently Used Words On Mainframe

Mainframe Architecture

• MVS                  :-  Multiple Virtual System
• JCL                   :-  Job Control Language
• CICS                 :- Customer Information Control System
• ISPF                  :- Interactive System Productivity Facility
• PDF                   :- Program Development Facility
• APPLID             :- Application  Identifier
• TSO/E                :- Time Sharing Option Extended
• IMS                    :- Information Management System
• MVS/XA            :- Extended Architecture
• MVS/ESA          :- Enterprise System Architecture
• PDS                    :- Portioned Data Set
• PSDS                  :- Physical Sequential Data Set
• DASD                 :- Direct Access Storage Device
• DSORG              :- Data set Organization 
• PS                       :- Physical Sequential 
• RECFM              :- Record Format
• F                         :- Fixed
• V                         :- Variable
• FB                       :- Fixed Blocked
• U                         :- Undefined
• FBS                     :- Fixed Blocked Size
• VBS                    :- Variable Block Size
• LRECL               :- Logical Record length
• DCB                   :- Data Control Block
• DISP                  :- Disposition
• DSN                   :- Data Set Name
• IDCAMS           :- Integrated Data Cluster Access Method Service
• IDC                   :- Integrated Data Cluster  
• AMS                  :- Access Method Service
• ESDS                 :- Entry Sequenced Data Set
• KSDS                :-  Key Sequenced Data Set 
• RRDS                :- Relative Record Data Set
• DDNAME         :- Data Definition name   
• ICF                    :- Integrated Cat-lg Facility
• CISZ                  :- Control Interval Size
• VSAM               :- Virtual Storage  Access Method
• Cobol                 :- Common Business Oriented Language
• Rrn                     :- Relative Record Number

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