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Definitions

mainframe

[meyn-freym] / 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

Sales of the z17, the company’s flagship enterprise mainframe designed for the artificial-intelligence age, fell short of its expectations, in line with the previous investor warning.

From The Wall Street Journal Jul. 23, 2026

Krishna said the launch of the company’s z17 mainframe and the associated software stack in the second quarter ended up being “worse than our expectations” for infrastructure revenue to fall in the low-single-digit range.

From MarketWatch Jul. 14, 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

In one seven-month period in 1971, Gates and his cohorts ran up 1,575 hours of computer time on the ISI mainframe, which averages out to eight hours a day, seven days a week.

From "Outliers" by Malcolm Gladwell

While other tech giants spend on AI data centers, Big Blue aims to keep selling mainframes and pour profits into quantum computing.

From The Wall Street Journal Jul. 24, 2026

He essentially bet that corporate clients running critical programs on their own mainframes purchased from IBM couldn’t or wouldn’t migrate to remote data centers offered by Amazon, Google and Microsoft.

From The Wall Street Journal Jul. 18, 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

The infrastructure division, which includes IBM’s mainframes, reported revenue of $3.3 billion, which was just ahead of the $3.1 billion FactSet consensus and represented growth of 15% from the previous year.

From MarketWatch Apr. 22, 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




Vocabulary lists containing mainframe


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