Abstract
An automated library system has been developed for the complete operator reduction in the large computer systems, adopting the magnetic tape cassette system capable of high speed information transfer and high density recording. The media handling unit, the main part in this system, has the following technical features: (1) Highly reliable handling by means of wearless cartridge mounting and digital-controlled cartridge transport with dual mechanisms. (2) Motion control for earthquake protection and autonomous motion judging from the circumstance change. (3) Automatic maintenance with cleaning tapes and accident prediction with a statistical information of component wear.
