Appears to be a tie, between Programmer's Guide to the IBM System/360 (1969), and (Computer Readings Series) An Introduction To Computer Systems, apparently edited 1969, mostly a collection of reprited articles from the latter half of the 60's.

(neither of which I ever had cause to use in anger, of course ;)

ETA: An honorable mention: A FORTRAN Coloring Book, 1978 8-}

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

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