The Origins of the IBM i: A Trip Through Computer History Status is offline

​No, we will skip over the contemporary history and go straight back to the beginning of time, I mean, of the AS/400, and, cover three of the central concepts of the platform, which characterized the AS/400 then and to this day still characterize today’s IBM i: single-level store, the layered OS, and objects.
The underlying reason for this stratification, which Soltis mentions in Inside/AS400, were two trends: increasing processor power, and a desire to develop software using higher levels of abstraction than were provided by low-level programming languages. Read More 

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