As the chief architect of the AS/400, Frank Soltis has a fascinating story to tell. It's truly the inside story of the best-selling multiuser computer ever produced. The dedication, vision, awesome technical knowledge, and persistence of the team who planned and developed the AS/400 comes through as a real drama of the computer age.
Because the AS/400 is designed to provide great functionality in an easily used form, the complexities of the operating system internals are largely hidden from the programmer. But programmers, as Paul Conte notes in his foreword, ultimately want to know how things work. "And as any experienced programmer knows", Conte continues, "you can't learn everything from the manuals; and this is especially true for the AS/400, since manuals expressly avoid details about internal structure or operations... Any AS/400 programmer will find Inside the AS/400 essential to his or her technical understanding of the AS/400".
A very advanced machine for its day and even had features which are not available in todays OS's - such as pointer protection in hardware.
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