In Electronics II, we gained experience with the following:

Numbering systems (Base 2)
Integrated circuits (e.g., 555 timers, op-amps, logic gates, counters, multiplexers, demultiplexers, shift registers, flip-flops)
Building and testing digital circuits and systems
Combinational and sequential logic circuits
Boolean expressions
Simplifying logic expressions using Karnaugh maps
Creating and using logic diagrams and truth tables
Electronics software for circuit drawing and analysis
Digital circuit design
Digital electronics teaching techniques