What is "by making the pdp 11 minicomputer an integral part of the therac-25?

The PDP 11 minicomputer was an important component of the Therac-25, a medical linear accelerator used for radiation therapy. By integrating the PDP 11 into the system, the Therac-25 was able to utilize advanced software algorithms to optimize radiation delivery and minimize risk to patients. The PDP 11 provided the processing power necessary to run the complex software that controlled the Therac-25, which allowed for accurate, precise, and safe radiation delivery. The integration of the PDP 11 also allowed for remote monitoring and maintenance of the Therac-25, which significantly improved its reliability and availability. Overall, the PDP 11 was a critical component of the Therac-25, enabling it to deliver effective radiation therapy while minimizing risks to patient safety.