A system and method are disclosed for controlling text storage in a text processing system using a segmented, serial bulk storage device. A plurality of storage segments of equal length are further subdivided into portions of equal length. A typical page of text occupies more than one portion of a segment....http://www.google.com/patents/US4197588?utm_source=gb-gplus-sharePatent US4197588 - Segmented storage logging and controlling for random entity selection
