O-LevelComputer ScienceBoolean logic2210/22 · May/June 2024 · Q24 Marks
Four logic functions and five standard symbols for logic gates are shown. Draw one line to link each logic function to its standard symbol. Not all standard symbols will be used. [Figure showing Logic functions (AND, XOR, NAND, OR) and five Standard symbols for logic gates]
- Draw one line to link each logic function to its standard symbol. Not all standard symbols will be used.[4]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.
- One mark for each correct line
- Logic function (AND) -> Standard symbol (D-shape, two inputs, one output, no inversion)
- Logic function (XOR) -> Standard symbol (curved line on input side, two inputs, one output, no inversion)
- Logic function (NAND) -> Standard symbol (D-shape, two inputs, one output, with inversion bubble)
- Logic function (OR) -> Standard symbol (curved input, pointed output, two inputs, one output, no inversion)
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