math magicModel: Math Magic
Battery: 9 volt
AC adapter:
Year: 1977
Chip: TMC0907/ZA0379

Info: With the beautiful MATH MAGIC Texas Instruments introduced a variation of the Little Professor. The Little Professor gives you one of ten-thousands pre-programmed math questions and you have to type the correct answer. The MATH MAGIC works different: You have to type the question and the answer ! The MATH MAGIC gives you only a correct (flashing display) or wrong (EEE) answer.