Resources This page is for extra resources. Course materials (lectures, labs, and assignments) are on Blackboard Interactive Logic Circuits L2.1 - Basic Gates L2.2 - Adders L2.3 - De Morgan and Parity L3.1 - Flip-Flops L3.2 - Counters CPU simulators L4 - 4-bit CPU Simulator L5 - 6809 CPU Simulator