The IBM 3495 Tape Library Dataserver is an automated tape library that consists of one to four IBM 3490 Magnetic Tape Drive Subsystems, a Library Manager computer, a storage enclosure, and a tape cartridge accessor. The accessor incorporates a combination of IBM and OEM robotics and vision systems with application programs and special fixtures that provide automatic teaching and updating for up to 18,000 cell locations in the library. Command queueing allows continuous robotic motion, removing the performance penalty of communications with the Library Manager computer. The application program written for the vision system compensates for label tilt and spatial translation. A neural network with special filters ensures the quality of the labels read.
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