The Superposition Principle h-superposition.jpg http://ecelab.com/superposition.htm Know what Superposition is: Accelerometer IC's h-accel.jpg http://ecelab.com/accelerometers.htm Accelerometers - know them! Transistor-Transistor Logic h-ttl.jpg http://ecelab.com/ttl.htm What is TTL? Charge-Coupled Devices h-ccd.jpg http://ecelab.com/ccd.htm How Do CCD's Work? Digital-to-Analog Converters h-dac.jpg http://ecelab.com/dac.htm What are DAC's?