Reviewer´s Reply

Problems in Publishing Current Information: In his rebuttal, Professor Flores stresses the difficulty of publishing an up-to-date book. However, in his 1972 review (IEEE TRANSACTIONS ON COMPUTERS, December 1972) of Katzan\´s book, Flores complained "My curiosity about the 3330 disk system was not satisfied." Katzan had allocated about 5 pages of his 1971 book to a discussion of the IBM 3330 system, including the "rotational position sensing" and "multiple requesting" features. Professor Flores now explains to us that his own book, published two years later, cannot be expected to cover these same items, because of the "constraint of time and necessity!"