Don BBC - awesome machine! 56 micahwittman Not programmable (I guess you could hack the ROM), but I distinctly remember the a-ha moment on groking division while holding the Little Professor in my hand.                                                 Huh, I just discovered it's featured on The National Museum of American History http://americanhistory.si.edu/teachingmath/html/enlarge/2001_9284.htm website. 52