APL'2002 Madrid Proceedings Experiences of A+ under Windows Adrian Smith Chairman, British APL Association e-mail: adrian@grapl.com Main topics: Open Source, APL in Schools, A+ 1. Background to the A+ Project The starting point for this work was the release into the public domain of the A+ development system by Morgan Stanley in late 2000. The released version ran on BSD Unix and Linux, but included full source code (under the GNU public license) and hence it immediately opened up the possibility of creating a version of the system to run on Microsoft platforms. It was not clear how easy this would be to achieve, as the original A interpreter had been enhanced over the years with a very closely integrated Gui system, which relied entirely on Motif, and hence was firmly tied to the Unix environment. It was also not clear what the benefits would be, as A+ is definitely not APL, in spite of many superficial similarities and the familiarity of the symbols. Indeed in many ways it has more in common with J, being a clear derivative of Sharp APL rather than APL2. The British APL Association decided that is was worth a week s work
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