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Digital Electronics (BOE310) AKTU PYQ analysis – unit-wise weightage

We analysed 282 questions from 10 AKTU Digital Electronics papers (2022–2026). Here is how marks are spread across units and which topics keep coming back.

Digital Electronics unit-wise weightage

  • Unit 1: Digital System, Binary Numbers and Logic Simplification – 50% of questions, about 36 marks per paper
  • Unit 2: Combinational Logic – 43% of questions, about 31 marks per paper
  • Unit 3: Sequential Logic and Its Applications – 45% of questions, about 32 marks per paper
  • Unit 4: Synchronous and Asynchronous Sequential Circuits – 38% of questions, about 27 marks per paper
  • Unit 5: Memory, Programmable Logic and Digital Logic Families – 50% of questions, about 36 marks per paper

Most repeated Digital Electronics topics in AKTU PYQs

  • Digital Logic Families
  • Latches and Flip Flops
  • Adders and Subtractors
  • Karnaugh Map Simplification
  • RAM and ROM

Unit 1 (Digital System, Binary Numbers and Logic Simplification) – top topics

  • Karnaugh Map Simplification – asked 17 times, last in 2026
  • NAND NOR Implementation – asked 13 times, last in 2025
  • Number Systems and Arithmetic – asked 12 times, last in 2026

Unit 2 (Combinational Logic) – top topics

  • Adders and Subtractors – asked 22 times, last in 2026
  • Multiplexer and Demultiplexer – asked 15 times, last in 2026
  • Magnitude Comparator – asked 7 times, last in 2025

Unit 3 (Sequential Logic and Its Applications) – top topics

  • Latches and Flip Flops – asked 32 times, last in 2026
  • Shift Registers – asked 9 times, last in 2026
  • Synchronous Counters – asked 8 times, last in 2025

Unit 4 (Synchronous and Asynchronous Sequential Circuits) – top topics

  • Synchronous Circuit Analysis – asked 15 times, last in 2026
  • Synchronous Circuit Design Procedure – asked 9 times, last in 2026
  • Asynchronous Circuit Analysis – asked 8 times, last in 2025

Unit 5 (Memory, Programmable Logic and Digital Logic Families) – top topics

  • Digital Logic Families – asked 38 times, last in 2026
  • RAM and ROM – asked 16 times, last in 2025
  • PLA and PAL Devices – asked 10 times, last in 2026