The Computers: Programming: Languages: Smalltalk: (Self Smalltalk )

Self was the first prototype-based programming language, and may still be the best known. Its development was inspired and strongly influenced by the pioneering work on Smalltalk By Xerox PARC. Self is a Smalltalk follow-on, and can be seen as a Smalltalk variant or dialect; though this is not strictly so if one defines Smalltalks as based on classes only, not prototypes. Self emerged from the University of California, Berkeley Smalltalk program, a custom RISC chip designed to run Smalltalk-80. Berkeley got the very first Smalltalk license (making it the first post-PARC Smalltalk) from Xerox PARC so they could put Smalltalk on their chip. Dave Ungar was head of the project, and became the main author of Self. Self Smalltalk Languages Programming Computers.

Self is a reference by an individual to the same individual person. This reference is necessarily subjective and it follows that self is a reference by a subject to the same subject. (wikipedia)