Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Digital Logic - Computer Science & Information Technology previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Digital Logic. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Open a focused page built from the same verified paper data.
Explore previous-paper coverage, trends and focused practice for Number Representation and Arithmetic.
Explore previous-paper coverage, trends and focused practice for Combinational and Sequential Logic.
Explore previous-paper coverage, trends and focused practice for Boolean Algebra and Logic Minimization.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Computer Science and Information Technology (CS) 2026 | 2026 | 5 | View paper |
| Computer Science and Information Technology (CS) 2026 | 2026 | 5 | View paper |
| Computer Science & Information Technology (CS) 2025 [Session 1] | 2025 | 4 | View paper |
| Computer Science & Information Technology (CS) 2025 [Session 2] | 2025 | 5 | View paper |
| Computer Science & Information Technology (CS) 2024 [Session 1] | 2024 | 4 | View paper |
| Computer Science & Information Technology (CS) 2024 [Session 2] | 2024 | 4 | View paper |
| Computer Science & Information Technology (CS) 2023 [Session 2] | 2023 | 6 | View paper |
| Computer Science & Information Technology (CS) 2022 [Session 2] | 2022 | 3 | View paper |
| Computer Science & Information Technology (CS) 2021 [Session 1] | 2021 | 4 | View paper |
| Computer Science & Information Technology (CS) 2021 [Session 2] | 2021 | 5 | View paper |
| Computer Science & Information Technology (CS) 2020 [Session 2] | 2020 | 2 | View paper |
| Computer Science & Information Technology (CS) 2019 [Session 2] | 2019 | 6 | View paper |
| Computer Science & Information Technology (CS) 2018 [Session 2] | 2018 | 4 | View paper |
| Computer Science & Information Technology (CS) 2017 [Session 2] | 2017 | 6 | View paper |
| Computer Science & Information Technology (CS) 2016 [Session 1] | 2016 | 4 | View paper |
| Computer Science & Information Technology (CS) 2014 [Session 1] | 2014 | 3 | View paper |
| Computer Science & Information Technology (CS) 2014 [Session 2] | 2014 | 3 | View paper |
| Computer Science & Information Technology (CS) 2014 [Session 3] | 2014 | 2 | View paper |
| Computer Science & Information Technology (CS) 2013 [Session 1] | 2013 | 3 | View paper |
| Computer Science & Information Technology (CS) 2013 [Session 2] | 2013 | 1 | View paper |
| Computer Science & Information Technology (CS) 2013 [Session 3] | 2013 | 3 | View paper |
| Computer Science & Information Technology (CS) 2013 [Session 4] | 2013 | 3 | View paper |
| Computer Science & Information Technology (CS) 2009 | 2009 | 1 | View paper |
A varied preview from the papers represented in this selection, with every available option.
| Present State A | Present State B | Input | Next State A | Next State B | Output |
|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 1 | 0 | 1 | 0 | 0 |
| 1 | 0 | 0 | 0 | 1 | 0 |
| 1 | 1 | 0 | 1 | 0 | 0 |
| 0 | 0 | 1 | 0 | 1 | 0 |
| 0 | 1 | 1 | 0 | 0 | 1 |
| 1 | 0 | 1 | 0 | 0 | 1 |
| 1 | 1 | 1 | 0 | 0 | 0 |
The smallest integer that can be represented by an 8-bit number in 2’s complement form is
| Inputs | Outputs | ||||||
|---|---|---|---|---|---|---|---|
| D0 | D1 | D2 | D3 | X0 | X1 | V | |
| 0 | 0 | 0 | 0 | X | X | 0 | |
| 1 | 0 | 0 | 0 | 0 | 0 | 1 | |
| X | 1 | 0 | 0 | 0 | 1 | 1 | |
| X | X | 1 | 0 | 1 | 0 | 1 | |
| X | X | X | 1 | 1 | 1 | 1 | |