What On Earth is a Mainframe?: An Introduction to IBM Z Mainframes and z/OS Operating System for Total Beginners
What On Earth is a Mainframe?: An Introduction to IBM Z Mainframes and z/OS Operating System for Total Beginners
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What On Earth is a Mainframe?: An Introduction to IBM Z Mainframes and z/OS Operating System for Total Beginners
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What On Earth is a Mainframe?: An Introduction to IBM Z Mainframes and z/OS Operating System for Total Beginners
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
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Based on a total of 80,524 customer reviews from independent review platforms.
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What On Earth is a Mainframe?: An Introduction to IBM Z Mainframes and z/OS Operating System for Total Beginners
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Based on a total of 80,524 customer reviews from independent review platforms.
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Pages: 208, Paperback, Lulu.com
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