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  1. Mainframe computer - Wikipedia

    A mainframe computer, informally called a mainframe, maxicomputer, [1][2] or big iron, [3] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such …

  2. What is a mainframe? - IBM

    Mainframe systems are computers able to process billions of calculations and transactions in real time, securely and reliably.

  3. Mainframestechhelp | Complete Mainframe Tutorials

    MainframesTechHelp - Best Online Mainframe Tutorials MainframesTechHelp started with a concept of delivering online content with the flexibility of learning from anywhere and anytime. The content …

  4. What is a Mainframe Computer? - GeeksforGeeks

    Jul 12, 2025 · Mainframe computers are a type of computer designed for high throughput, which means processing data as fast as possible. They are primarily used for transaction processing, which …

  5. MainframeMaster - COBOL & Mainframe Tutorials

    Master the Mainframe & COBOL Programming Comprehensive tutorials and resources for mainframe technologies and COBOL programming. Learn the skills that power the world's most critical systems.

  6. What is a Mainframe - Mainframe Explained - AWS

    A mainframe is a large computer that runs critical business applications requiring a significant amount of processing power. Banks and other large organizations often require this computing power for data …

  7. What is a mainframe? It's a style of computing - IBM

    A mainframe is the central data repository, or hub, in a corporation's data processing center, linked to users through less powerful devices such as workstations or terminals. The presence of a mainframe …

  8. IBMMainframer Online Mainframe Tutorials

    IBM Mainframe Tutorials - A Complete free IBM Mainframe Online Tutorials for mainframe programmer who working in mainframe technology.

  9. Mainframe Tutorials - TutorialsPoint

    Learn Mainframe with 6 free tutorials. Mainframe tutorials covering all topics from beginner to advanced level at Tutorials Point.

  10. Mainframe Introduction

    What is Mainframe? A mainframe is a large, powerful and highly efficient computer system primarily used by organizations for processing vast amounts of data and running critical applications. …