Page 35 - Computer_Science_F5

Computer Science

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Figure 1.22: Testing circuit

Step 6: Compare your test results with the outputs in truth Table 1.11

Both contain 0s, the output as well contains 0. This already tells us that the circuit
already computes a 0 when both inputs are 0. Now try another combination of
inputs by selecting the poke tool and start poking the inputs by clicking on them.
Each time you poke an input, its value will change.

Table 1. 11: Truth table for comparing test results

x y x AND y
0 0 0

0 1 0
1 0 0
1 1 1

Questions:
1. Provide descriptions on what you have observed.
2. Explain if the output of the circuit test from a simulator gives the same results
as in Table 1.23.

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for Advanced Secondary Schools

Computer Science Form 5.indd 26 23/07/2024 12:32