When programmers kill. [pdf] In 1982, Atomic Energy Canada, Limited, introduced the now-infamous Therac-25, a solely software-driven successor to its earlier medical linear accelerators. Six patients received massive amounts of radiation, and three died, before AECL was compelled to supplement the (faulty) software-only error-checking with hardware interlocks to prevent overexposure. [more inside]
posted by enn on May 20, 2008 - 18 comments