Where is the technique chart of anatomically programmed technique systems primarily stored?

The technique chart of anatomically programmed technique systems is primarily stored in the microprocessor of the control unit. This is because the microprocessor is responsible for processing and managing the information needed to optimize imaging based on various anatomical regions. By storing the technique chart in the microprocessor, the system can quickly access predefined protocols, adjust settings automatically, and ensure the necessary exposure factors are applied for different body parts during imaging procedures.

The control unit's storage unit is often involved in managing other functions, but the microprocessor specifically handles the algorithms and programming that dictate the adjustments of techniques based on patient anatomy. While the high voltage generator is crucial for the functioning of the X-ray equipment, it does not store technique charts or protocols. Similarly, the imaging receptor is the component that captures the image but does not play a role in storing or managing exposure techniques. Thus, the microprocessor's capability to house the technique chart makes it the correct answer in this context.