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Author: admin

  • How is it that Technology can evolve so quickly and still be so reliable?

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    It can change to address brand-new difficulties. The client/server computing model, which relies on dispersed nodes of less powerful computers, first appeared in the early 1990s to compete with mainframe computers’ hegemony. Industry experts referred to the mainframe computer as a “dinosaur” and prophesied its quick demise. As a result, designers created new mainframe computers…

  • MainFrame Architecture

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    Architecture is a set of specified concepts and guidelines that serve as building blocks for products. The architecture of mainframe computers has improved with each generation. Yet, they have remained the most reliable, secure, and interoperable of all computing systems Architecture in computer science specifies how a system is organized. An architecture can be broken…

  • Benefits of the MainFrame

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    There are many benefits to using a mainframe for cloud computing. A few benefits are listed below that you should think about:

  • How are MainFrames Operated?

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    IBM MainFrames are especially to operate

  • What are MainFrames

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    Mainframes are high-performance computers with lots of memory and processors that can handle a huge number of quick calculations and real-time transactions. Commercial databases, transaction servers, and applications that need high resilience, security, and agility depend on the mainframe. If you are a Mainframe programmer, it is necessary to know how to create and verify…

  • Basic Sort Tricks

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    The day-to-day application requirements in a corporate world that can be achieved using Utility Programs are illustrated below: 1. A file has 100 records. The first 10 records need to be written to output file. The option STOPAFT will stop reading the input file after 10th record and terminates the program. Hence, 10 records are…

  • Utility Programs

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    IBM Dataset Utilities Utility programs are pre-written programs, widely used in mainframes by system programmers and application developers to achieve day-to-day requirements, organising and maintaining data. A few of them are listed below with their functionality: Utility Name Functionality IEHMOVE Moves or copies sequential datasets. IEHPROGM Deleting and renaming datasets; catalog or uncatalog datasets other…

  • Running COBOL Programs using JCL

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    Compiling COBOL Programs In order to execute a COBOL program in batch mode using JCL, the program needs to be compiled and a load module is created with all the sub-programs. The JCL uses the load module and not the actual program at the time of execution. The load libraries are concatenated and given to…

  • Output Methods

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    Any batch program executed through a JCL requires data input, which is processed and an output is created. There are different methods of feeding input to the program and writing output received from a JCL. In batch mode, there is no user interaction required but input and output devices and required organisation are defined in…

  • Defining Datasets

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    A dataset name specifies the name of a file and it is denoted by DSN in JCL. The DSN parameter refers to the physical dataset name of a newly created or existing dataset. The DSN value can be made up of sub-names each of 1 to 8 characters length, separated by periods and of total…