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Most AIT media features an innovative semiconductor memory element called Memory-in-Cassette (MIC). The MIC is a memory chip built into the data cartridge that provides a direct and immediate connection to the drive's on-board processors, which speeds access to files and cartridge data, and holds the system's log and other user-definable information and provides a wealth of data about the history and current state of the data cartridge.

Information and file search parameters are formatted within the MIC system, rather than using the on-tape index file or requiring the time-consuming media load and tape threading process used by other tape technologies. Data access time is effectively cut in half—regardless of tape drive speed and recording density.

AIT-1, AIT-1 Turbo, AIT-2, and AIT-2 Turbo incorporate MIC, while AIT-3, AIT-3Ex, AIT-4, and AIT-5 incorporate Remote-MIC (R-MIC). R-MIC allows the tape drive to access valuable cartridge data without the use of a physical connection, reducing connector wear for both the AIT drive and the media. The R-MIC architecture also provides a unique protected area that is used for the implementation of a Write-Once-Read-Many (WORM) feature for the AIT-2, AIT-2 Turbo, AIT-3, AIT-3Ex, AIT-4, and AIT-5.

A number of storage applications benefit from the use of MIC, with particular benefits seen in hierarchical storage management, video server, film editing, real-time data acquisition and WORM recording.

AIT MIC Graph
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