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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 personal computers.

  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. 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. 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 on …

  5. 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 critical …

  6. What Is a Mainframe? - pickl.ai

    Jun 20, 2025 · A modern mainframe in computer environments operates as a high-performance, multi-user platform. It handles billions of transactions daily, supports multiple operating systems, and …

  7. Mainframe | Definition & Facts | Britannica

    Mainframe, digital computer designed for high-speed data processing with heavy use of input/output units such as large-capacity disks and printers. Mainframes have been used for such applications as …

  8. What Is a Mainframe? | Definition from TechTarget

    Apr 12, 2023 · A mainframe, also known as big iron, is a high-performance computer used for large-scale, compute-intensive purposes and tasks that require greater availability and security than …

  9. What Is a Mainframe? - Built In

    Aug 8, 2024 · A mainframe is a high-performance computer that processes massive amounts of data and computations in real time. Known for their high-throughput and reliability, these systems are …

  10. Mainframe Computers and IBM z/OS Terminology - Mainframes.com

    Mainframe computers, colloquially referred to as "big iron" are computers used primarily by corporate and governmental organizations for critical applications, bulk data processing such as census, …