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Master Control Computer

From Wookieepedia, the Star Wars wiki.

The Master Control Computer was located in the Emperor's Citadel on Byss. During Operation Shadow Hand it continuosly broadcasted a Master Control Signal through the HoloNet that controlled the operations of all World Devastators. In the First Battle of Mon Calamari, Luke Skywalker had R2-D2 interfere with the signal, causing the loss of three Devastators.

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