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Definitions

mainframe

[meyn-freym] / ˈmeɪnˌfreɪm /
NOUN
central processing unit
Synonyms






Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The idea of shifting off of mainframe is not a new concept,” Daryanani concluded.

From Barron's • Feb. 24, 2026

“IBM’s customers have had ample opportunities to migrate off of mainframe and are sticking with the platform given inherent advantages.”

From MarketWatch • Feb. 24, 2026

In his view, although alternatives have been available for decades, clients are sticking with mainframe for a host of reasons: reliability and speed advantages, better cost efficiency at scale, and security such as quantum-safe encryption.

From Barron's • Feb. 24, 2026

“Software and mainframe performance supported strong results for what many consider a defensive name,” said JPMorgan analyst Brian Essex, who rates the stock a neutral.

From MarketWatch • Jan. 29, 2026

But Pembroke knew exactly whom to call: those high school kids from Lakeside who had been running up thousands of hours of computer time on the ISI mainframe.

From "Outliers" by Malcolm Gladwell