Mainframe
/mˈeɪˌnfreɪm/
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Definition
(noun) A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital.
Sentence Examples
The scientists used an IBM mainframe computer to make their calculations.
CEFR Practice Quiz
The company's data is stored on a powerful ____ computer that is located in a highly secure facility.