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  1. Mainframe computer - Wikipedia

    Mainframes have high availability, one of the primary reasons for their longevity, since they are typically used in applications where downtime would be costly or catastrophic. The term …

  2. What Is a Mainframe? | IBM

    At their core, mainframes are high-performance computers with large amounts of memory and data processors that process billions of simple calculations and transactions in real-time.

  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 …

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

    This article explores what mainframes are, their key characteristics, some mainframe system examples, and how they compare to other architectures like supercomputers.

  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 …

  6. 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 …

  7. 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 …

  8. 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 …

  9. What Are Mainframes & Why Do Enterprises Still Use Them in …

    Mainframes may not be flashy, but they are the backbone of critical systems in banking, insurance, government, and more. In this blog, let’s explore what mainframes are, why they …

  10. Mainframe Introduction

    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.