Topics for Exam 1

• Analog and Digital quantities
• Batteries, wires, resistors, and switches at the most basic level
• TTL voltage limits for high/low signals and floating inputs
• Truth tables for basic gates: NOT, AND, OR, NAND, NOR, XOR
• Gate symbols
• Timing diagrams
• Truth tables for circuits with 3, 4, … inputs.
• Boolean Algebra, Identities, and DeMorgan’s Theorems
• Boolean expressions at test points and simplification
• Gate replacement, NAND and NOR
• Word problems ↔ Truth tables ↔ Boolean Expressions ↔ Circuits
• Sum of Products form, Sum of Products method
• Karnaugh maps
• Decimal ↔ Binary, MSB, LSB (or MSD, LSD)
• Multiplexers, including doubling and using two MUXes for a larger truth table
• XORs and XNORs
• Active high/low
• decoders, including 7-segment display decoders
• From lab: how to hook up a relay to drive a motor