Compilers: Principles, Techniques, and Tools (the "red dragon book"), 1986 (though my copy was printed much later).

At my parent's, I probably still have reference manuals for DOS and BASIC (from when computer documentation came in ringed binders) that might be older.

In reply to Re: The oldest computer book still on my shelves (or on my digital media) is ... by ikegami
in thread The oldest computer book still on my shelves (or on my digital media) is ... by ww

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