Unit #4-12

Learning Outcome

At the end of this lesson, you will be able to:

• review 2s complement

• understand how a computer's ALU works

Review

• remember the 4-bit Full Adder / Subtractor that we built in TEJ3M

Lesson

• nil

Activity

• watch the video, "Twos complement: Negative numbers in binary"

• watch the video, "ALU Design"

• watch the video, "Building the ALU"

• watch the video, "Troubleshooting the ALU"

Daily Assignment

• build the 8-bit ALU circuit

• you can build this in Tinkercad (without the buffer chips)

Extra

• build the physical circuit