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  1. Mainframe computer - Wikipedia

    A mainframe computer is large but not as large as a supercomputer and has more processing power than some other classes of computers, such as minicomputers, workstations, and …

  2. What is a mainframe? - IBM

    A mainframe acts as a server for storing and processing data at high speeds and can carry out millions of instructions simultaneously. In contrast, supercomputers are much faster, capable …

  3. What is a Mainframe - Mainframe Explained - AWS

    Mainframe computing enables large-scale data processing through a single, powerful central system. This system supports multiple users and terminals in real time.

  4. What is a Mainframe Computer? - GeeksforGeeks

    Jul 12, 2025 · In simple terms, mainframe computers are super-fast and reliable machines that help process large amounts of data quickly and efficiently. They are designed to ensure that …

  5. Mainframe Tutorials | Tutorialspoint

    Mainframe Tutorials - Tutorials for IBM mainfarme and associated technologies including DB2, CICS, COBOL, JCL, IMS DB, VSAM

  6. What is a Mainframe Computer? Complete Beginner's Guide 2025

    Nov 3, 2025 · This comprehensive beginner's guide explains what mainframe computers are, how they work, their history, real-world applications, and why they remain essential for processing …

  7. Mainframestechhelp | Complete Mainframe Tutorials

    MainframesTechHelp's objective is to deliver point-to-point online content on various mainframe technologies (including technical and non-technical) for the readers to learn and gain expertise …

  8. What Are Mainframes & Why Do Enterprises Still Use Them in 2025?

    What is a Mainframe? A mainframe is a high-performance computer used primarily by large organizations to process vast amounts of data quickly, securely, and reliably.

  9. What Is a Mainframe? Features, Importance, and Examples

    Jan 19, 2023 · A mainframe is defined as a large, powerful computer typically used for complex calculations and data processing tasks. It can connect to multiple end clients simultaneously …

  10. The IBM mainframe: How it runs and why it survives

    Jul 24, 2023 · Mainframe computers are often seen as ancient machines—practically dinosaurs. But mainframes, which are purpose-built to process enormous amounts of data, are still …