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.

Mainframe systems are computers able to process billions of calculations and transactions in real time, securely and reliably.

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

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 billions of …

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 …

The mainframe system architecture is a complex, highly scalable, and secure structure to handle large-scale processing of transactions, data, and critical applications.

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 …

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 so that …

While mainframe is a generic term, most people instantly associate these computing workhorses with IBM and their System Z, the most popular and widely used models.

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 …