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Digital signal processing (A-level only)

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Question 2

A logic system receives a 3-bit binary input representing the decimal numbers 0 to 7. The input bits are CCC, BBB, and AAA, where CCC is the most significant bit (MSB) and AAA is the least significant bit (LSB). The Boolean algebra expression for the system's output YYY is:

Y=B‾⋅(A+C) Y = \overline{B} \cdot (A + C) Y=B⋅(A+C)

Deduce all the decimal numbers from 0 to 7 that will cause the output YYY to become logic 1.

[3]
Markscheme

Digital signal processing (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Digital signal processing (A-level only)

5 exam-style questions on AQA A Level Physics Digital signal processing (A-level only), covering Combinational logic (A-level only), Sequential logic (A-level only), and Astables (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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