The invention of the Gutenberg Press lead to the start of the first "information revolution" as the printed word was used to widely disseminate ideas and concepts throughout the world. Structural change caused by how information was controlled and communicated radically changed the social structure of its day. The pace of this information revolution was remarkable, as the number of published books rose from some 30,000 in 1454 AD to over 3,000,000 by 1500 AD [2]. In the late 1940's …showed first 75 words of 1001 total…

…showed last 75 words of 1001 total…over to the fall-back server when transparent fail-over occurs [1]. Both these models provide network accessibility, data access, and system management flexibility allowing for shared storage resources. Bibliography [1]Emerging Trends in Data Storage on Magnetic Hard Disk Drives. In Datatech (September 1988), ICG Publishing, pp. 11-16. [2]Kozierok, Charles M. "PC Guide Disk Edition" http://www.pcguide.com/disk/index.htm [3]R. Matick, Computer Storage Systems and Technology, John Wiley & Sons, Inc., New York, 1977. pp. 3-27.