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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

    Mainframes are data servers that are designed to process up to 1 trillion web transactions daily with the highest levels of security and reliability. At their core, mainframes are high-performance computers …

  3. 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 …

  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 critical …

  5. Mainframe | Definition & Facts | Britannica

    Nov 12, 2025 · 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 …

  6. What is a mainframe? Definition, examples, and technologies

    A mainframe is a high-performance computer designed to manage large volumes of data and large-scale computing tasks. These systems are optimized to offer high availability, scalability, and …

  7. 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 …

  8. What Is a Mainframe? - pickl.ai

    Jun 20, 2025 · Mainframes are powerful computers designed for large-scale, mission-critical applications. They have evolved from room-sized machines to compact, cloud-integrated systems, …

  9. What Is a Mainframe? | phoenixNAP IT Glossary

    Apr 16, 2025 · A mainframe is a high-performance computer designed to process enormous amounts of data and execute complex calculations at scale. Mainframes typically reside in secure data centers …

  10. What is Mainframe Computer? -Definition, Features & Working

    Dec 23, 2025 · A mainframe is a powerful computer used for large-scale data processing. It is fast, reliable, and can support thousands of users at the same time. Governments, banks, and big …