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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.

“But the COBOL-based mainframe remains deeply embedded in large enterprises.”

From Barron's • Feb. 25, 2026

But IBM’s z17 mainframe has still proved popular, Daryanani added, with customers seemingly gravitating toward benefits like 100% uptime, quality encryption and cost efficiencies.

From MarketWatch • Feb. 24, 2026

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

From Barron's • Feb. 24, 2026

He views the mainframe business as “resilient” given examples from IBM of how customers are growing, not shrinking, their workloads.

From MarketWatch • Feb. 24, 2026

It was a selfie of her in front of an Indian restaurant with the message, If you want to hack into the mainframe, meet me here as fast as you can.

From "City Spies" by James Ponti