Title: the definitive field guide to dinosaur mainframes
Product review: This is an excellent overview of various obsolete mainframe operating systems (not to mention Unix, which is not obsolete.) You know the systems I mean: the ones you access using those ugly old green and black screens in a dusty corner of your IT department's offices, the ones with the humongous databases hidden behind arcane text-based software. The potentially dry material is greatly moistened by DuCharme's witty yet understated writing style.There are still a lot of those dinosaur mainframes still roaming the earth, Y2K notwithstanding, so this field guide is still useful, a full half-decade after it was published.
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