What is "Mainframe"

The type of architectural building
103
The type of multi-tasking robot
73
A type of supercomputer
413
Type of organizational structure
239
Mainframe computers (colloquially referred to as "big iron") are computers used primarily by large organizations for critical applications, bulk data processing, such as census, industry and consumer statistics, enterprise resource planning, and transaction processing. Most large-scale computer system architectures were established in the 1960s, but continue to evolve.
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