Source : Free On-Line Dictionary of Computing

PC-Scheme
     
        Version 3.03
     
        compiler, debugger, profiler, editor, libraries
     
        {(ftp://altdorf.ai.mit.edu/archive/pc-scheme/)}.
     
        Written at {Texas Instruments}.  Runs on {MS-DOS} 286/386 IBM
        PCs and compatibles.  Includes an optimising compiler, an
        emacs-like editor, inspector, debugger, performance testing,
        foreign function interface, window system and an
        object-oriented subsystem.  Also supports the dialect used in
        {Hal Abelson} and {Gerald Sussman}'s {SICP}.
     
        Conformance: Revised^3 Report, also supports dialect used in
        SICP.
     
        restriction:	official version is $95, contact 
     
        ports:		MS-DOS
     
        See also {PCS/Geneva}.
     
        (1992/02/23)