Introduction: Introduction to BIS and Mainframe Computer, Hardware configuration, 360/370
family: Processor, Multiprogramming, Channels, Input-Output device, Application, Characteristics of
Mainframe Operating System: Batch processing, Virtual Storage, Spooling, Timesharing,
Multiprogramming, Mainframe configuration : Small Mainframe configuration , 3090 configuration
COBOL Programming: Organization & Structure of COBOL program, Coding format,
Identification and Environment Division- Configuration section, Input-Output section, Data Division- File
section, Working storage section, Usage clause, synchronized clause, justified clause, redefines clause,
renames clause, sign clause. Procedure Division- Structure of procedure division, data movement,
arithmetic, sequence control, input output & conditional verbs. Table Handling- OCCURS clause and
subscripting, multidimensional table, Perform, Set, Search verbs, index table and indexing, sorting a table.
Structure of COBOL subroutines; Calling Subroutines, State of subroutines and CANCEL statement.
COBOL Files: Sequential file characteristics, File-control entries, File description –Fixed length
record, Statements for sequential files, Sequential files with variable length record, Features for unit record
files, special features for magnetic-tape files, I-O-CONTROL paragraph. Sort & merge verbs, File
updating, Same sort area clause, Memory size clause; Direct Access Files- Relative files, Indexed
sequential files; Creating reports.
Job Control Language (JCL): Introduction to JCL : Mainframe information representation &
Storage , Sequential data set , Partition data Set , Index file , Structure of JCL , JOB statement, EXEC
statement, DD statement, Procedures & symbolic parameters, Compile – Link – Execute JCL, IBM utility:
IEBGENER, IEBCOPY, IEHPROGM, IEBCOMPR .
VSAM: Introduction to VSAM, AMS, Defining & loading KSDS, ESDS, RRDS.
An Overview of DB2 [6L]: Introduction, Environment, Major components of DB2, DBRM, BIND,
PLANS, DB2 internals: DB2 objects, optimizers, DB2 catalog & directory, Data locking.