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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.

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 of executing billions of floating-point operations in one second.

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.

What is a Mainframe Computer? - GeeksforGeeks
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 systems, like banking and finance, remain available 24/7 without any interruptions.

What Is a Mainframe? Features, Importance, and Examples
What Is a Mainframe? Features, Importance, and Examples A mainframe is a powerful computer that connects to multiple end clients so that users can access apps concurrently.

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 security, making them essential in critical sectors such as banking, insurance, government, and logistics.

What Is a Mainframe? | Definition from TechTarget
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 smaller-scale machines.

What Is a Mainframe? - pickl.ai
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 ensures data integrity and security across complex enterprise networks.

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.

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.