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Definitions

mainframe

[mayn-fraym] / ˈmeɪnˌfreɪm /
NOUN
central processing unit
Synonyms






Example Sentences

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The tech industry might have abandoned powerful-but-specialized mainframe computers and shifted to the cloud, but IBM’s customers—what you might call the “real” economy—still lean heavily on them.

From The Wall Street Journal ● Jul. 23, 2026

But neither is the mainframe business and its associated software doomed, given that it remains competitive in certain markets, he argued.

From The Wall Street Journal ● Jul. 23, 2026

“It was a shot to the heart and the chest and the mainframe with Luka,” James told reporters.

From Los Angeles Times ● Apr. 9, 2026

There is a perception that IBM’s mainframe business could be threatened by AI.

From Barron's ● Mar. 27, 2026

Dozens of terminals could be built, all linked to the mainframe by a telephone line, and everyone could be working—online—all at once.

From "Outliers" by Malcolm Gladwell

With AI, like all new technologies, the refinement stage is kicking in—just as mainframes gave way to cheaper minicomputers, microprocessors, web servers and now AI architectures.

From The Wall Street Journal ● Oct. 11, 2026

Another custom line, called Tellum II, powers IBM’s latest mainframes.

From The Wall Street Journal ● Jul. 23, 2026

IBM’s mainframes, servers and software are no less dominant in the core functions of insurance companies, banks, airlines and other members of the Fortune 500.

From The Wall Street Journal ● Jul. 23, 2026

However, Morningstar’s Yang explained that mainframes fall into a different class of hardware and process different workloads than hyperscaler servers do, for instance.

From MarketWatch ● Jul. 14, 2026

Computers up to that point had been the massive, expensive mainframes of the sort sitting in the white expanse of the Michigan Computer Center.

From "Outliers" by Malcolm Gladwell


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