Computer Systems - Tutorial 7

On the departmental network there is a program called NANDLAND which allows you to simulate the behaviour of logic circuits. When you run this program you get a window as shown below.

NandLand Opening Screen

You may then use the mouse to drag and drop connections to the gates shown, and by clicking the input keys on and off, you may then demonstrate how the circuit behaves.

Carry out the following exercises using NANDLAND.

1. Design and simulate an OR function. Check by working through the truth table.

2. Repeat question 1 for (a) an XOR gate, (b) a binary half-adder and (c) the majority voting system.

3. Demonstrate the construction of some of the examples from the logic simplification tutorial.

 

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