This lecture crosses the elusive software - hardware barrier and exposes the basic building blocks of hardware. It also introduces the hard design language, Verilog.

• Semiconductors
• Transistor switches
• Logic Gates
• The universality of AND/OR/NOT
• Boolean Expressions
• Building combinational circuits: adders, multiplexors, the ALU
• Circuit verification via Verilog.

• Complex logic can be realized using a hierarchy of layers each adding more complexity to the one before it
• The journey from On/Off to arithmetic and decisions

• Read Sections B.1 to B.5 of Appendix-B.
• Go over the file, Adder.v1 in the Resource Directory