ETCAI ELECTRONICS TRAINING SYSTEM v1.25<ASP> 
(ESC) 31 exercises to help you learn or teach
electricity or electronics. Features random 
problem generation, extensive graphics, 
context sensitive help, and instant scoring. 
Supports mouse, EGA, VGA, and Hercules. 
Suitable for use in high school, college, and
trade school. By C. E. Ormon. $45.00 single 
copy, site licenses available at reduced 
prices.