The programmer as navigator

@article{Bachman1973ThePA,
  title={The programmer as navigator},
  author={Charles W. Bachman},
  journal={Commun. ACM},
  year={1973},
  volume={16},
  pages={635-658}
}
  • C. Bachman
  • Published 1 November 1973
  • Computer Science
  • Commun. ACM
This year the whole world celebrates the five-hundredth birthday of Nicolaus Copernicus, the famous Polish astronomer and mathematician. In 1543, Copernicus published his book, Concerning the Revolutions of Celestial Spheres, which described a new theory about the relative physical movements of the earth, the planets, and the sun. It was in direct contradiction with the earth-centered theories which had been established by Ptolemy 1400 years earlier. 

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