Wednesday, July 15, 2026

theQSECOFR

The Blueprint for IBM i Excellence.

Author

Sameera Wijayasiri

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theQSECOFR

The Blueprint for IBM i Excellence.

i5/OS

ibm i main menu

Understanding IBM i System Architecture

Sameera Wijayasiri011 mins

IBM i, formerly known as OS/400 and i5/OS, is a robust operating system developed by IBM for its Power Systems servers. Released in 1988, it emphasizes integration, security, and reliability, making it a staple in enterprise environments for business-critical applications. The “i” in IBM i stands for “integrated,” reflecting its design philosophy where components like…

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ibm i main menu

History of IBM i : Part 8 – Fundamental Concepts, Evolution, Renamings, and Version History

Sameera Wijayasiri07 mins

IBM i is a robust, integrated operating system designed for IBM Power Systems hardware, renowned for its reliability, security, and backward compatibility in enterprise environments. Originally rooted in midrange computing platforms from the 1970s, it has evolved into a modern OS that supports cloud, AI, and DevOps while maintaining compatibility with applications dating back decades….

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