The Therac-25 Incident

8/6/2021

This article recounts the infamous Therac-25 incident, which involved a computer-controlled radiation therapy machine that caused several accidents and injuries in the 1980s. The article explains how a combination of software and hardware design flaws led to the machine delivering lethal doses of radiation to patients. It discusses the specific technical issues that contributed to the accidents, including race conditions and inadequate error handling. The article also highlights the ethical implications of the incident, such as the lack of transparency and accountability from the manufacturer. Overall, it serves as a cautionary tale about the importance of rigorous software testing and safety measures in critical systems.

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