The source code of the Apple Worm is the first program printed in its entirety in Scientific American.
[1] The Apple Worm was designed and developed by James R. Hauser and William R. Buckley.
Other example Apple Worm programs are described in the cover story of the November 1986 issue of Call_A.P.P.L.E.
In programmer-ese, this means the code and data spaces are kept separate.
In this sense, a dynamic self-relocator is a self-referential system, as defined by Douglas R.