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 …

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

Mainframe computers allow you to share data, access resources, regulate access, and distribute resources to users. Despite their significant processing power, mainframes differ from servers …

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 …

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 …

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 …

Jun 20, 2025 · Discover what a mainframe is, its evolution, benefits, and modern applications. Learn why mainframe technology remains essential for enterprises.

Mainframe is the powerful central computer (CPU) in a data processing center, linked to thousands of users through less powerful devicessuch as PC workstations or terminals (just …

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.

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 …