The logic diagram below (Fig. 2) shows a system made up of two connected logic gates. A B Q (a) (i) Label the names of the two gates on the diagram above. (ii) Complete the truth table below to show the output from this logic system. A B Q 0 0 0 1 1 0 1 1 (b) Draw the logic diagram represented by Q = A ∨ ¬B.

Photo AI

The logic diagram below (Fig - OCR - GCSE Computer Science - Question 3 - 2018 - Paper 1

Question 3

The logic diagram below (Fig. 2) shows a system made up of two connected logic gates. A B Q (a) (i) Label the names of the two gates on the diag... show full transcript

Worked Solution & Example Answer:The logic diagram below (Fig - OCR - GCSE Computer Science - Question 3 - 2018 - Paper 1

Step 1

Label the names of the two gates on the diagram above.

96%

114 rated

Answer

The two gates in the logic diagram are:

AND gate (the first gate connected to A and B)
NOT gate (the second gate connected to the output of the AND gate, producing Q)

Step 2

Complete the truth table below to show the output from this logic system.

99%

104 rated

Answer

To complete the truth table, we need to analyze the outputs based on the inputs A and B using the AND operation followed by the NOT operation. The outputs are determined as follows:

A	B	Q
0	0	1
0	1	0
1	0	1
1	1	0

Step 3

Draw the logic diagram represented by Q = A ∨ ¬B.

96%

101 rated

Answer

The logic diagram for Q = A ∨ ¬B consists of:

An OR gate with two inputs: A and the output of a NOT gate.
The NOT gate takes B as its input and produces ¬B as output. This output is connected to one input of the OR gate, while A is connected to the other input.

Join the GCSE students using SimpleStudy...

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

;