Makes Macintosh Common Lisp, MCL: for 68k, PowerPC; compiles to native code, supports threads, integrates well into Mac OS, fun; Common Lisp Interface Manager, CLIM: platform independent user interface system, to target other Lisp platforms.
Object-oriented, extends abilities and performance of traditional Logo, useful for users of all ages, elementary school students to professional programmers; potent education tool and means to explore programming, general and more so object-oriented. ...