1. Announcements Homework #2 will be posted after class – Due Monday, Oct 1, 1:30pm Upcoming office hours: – Tomorrow: Sheng, 12-1:30pm, 207 Moore – Monday: Chris, 11am-12pm, 174 Moore Chris 1:30-3:00, 174 Moore Swati, 6:30-7:30pm, Levine 5 th floor – Tuesday: Greg, 11am-12pm, Towne cafe Sheng, 3-4pm, 207 Moore

2. Schedule Last time: Combinational logic circuits (3.3) – Sum-of-products algorithm – Adder circuit – Decoder, demultiplexer, multiplexer Today: Memory (3.4 – 3.5) No lab on Monday!! Tuesday: von Neumann architecture (Ch. 4)

3. Today (Sections 3.4 – 3.5) One-bit storage – R-S latch – Gated D latch Multi-bit storage – Register Memory – Address space and addressability