The first of two articles provides an overview of four revolutions in publishing--the movable-type printing press, mechanization, the computer, and optical disc technology. The first phases of CD-ROM development--demonstration of feasibility and testing of replacement functions--are described and compared with earlier technologies. (3 references)…

Discussion of electronic resources in the humanities highlights the history and development of the Thesaurus Linguae Graecae, an electronic data bank of ancient Greek literature from the classical and postclassical periods. Data entry is discussed, hardware is described, and implications for the humanities and other disciplines are suggested. (LRW)

Predictions for the future of optical disk technology are based on three phases of development: feasibility testing; use as a replacement technology for older technologies; and the introduction of new applications not possible in older technologies. (Author/CLB)