Ch solves portability headaches

  title={Ch solves portability headaches},
  author={G. Wang},
  journal={IEEE Spectrum},
  • G. Wang
  • Published 1 June 2002
  • Computer Science
  • IEEE Spectrum
S everal years ago I was developing an engineering expert system on a VAX minicomputer. However, a Sun workstation using X-Windows was hosting the maintenance interface of the system’s knowledge base. With the VAX machine running the VMS operating system and the Sun running Unix, I had two operating systems to worry about. I was often confused and had a hard time making my code work on both machines. Soon after, I had to develop a production scheduling system on a Windowsbased system. That…