FEE Unit 4 Notes AKTU (BEC101)

AKTU · BTECH · Semester 1, 2 · Fundamentals of Electronics Engineering · Unit 4 · Notes

AKTU Fundamentals of Electronics Engineering (BEC101) Unit 4 notes for B.Tech Semester 1/2 – Digital Electronics. Topics: Number Systems and Arithmetic…

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Unit 4: Digital Electronics – AKTU syllabus topics

  • Number Systems and Arithmetic: Number Representation and Conversion, Binary Arithmetic Operations
  • Basic and Universal Gates: AND OR NOT Gates, NAND NOR Universal Gates
  • Boolean Algebra Simplification
  • K-Map Minimization: K-Map up to 4 Variables, K-Map up to 6 Variables

Most asked AKTU PYQ questions from Unit 4

  1. Q6b. Simplify the function F(A,B,C,D) = Σm(0,2,5,6,7,13,14,15) + d(8,10) using K-map and implement the simplified function using NAND gates only. (10 marks, 2021-22)
  2. Q6a. Define universal logic Gates. Realize basic logic gates using NAND and NOR gates. (10 marks, 2021-22)
  3. Q2c. (i) Subtract using 10's complement: (9754)10 – (364)10 (ii) Subtract using 1's complement: (10111)2 – (110011)2 (10 marks, 2021-22)
  4. Q2d. Perform following operation: (i) Determine 2's complement of (1010.110)2 (ii) Convert (25.125)10 into Hexadecimal number (iii) Add binary number (1011)2 and (1111)2 (iv) State De Morgan's Law (v) Define minterm and maxterm (10 marks, 2021-22)
  5. Q6a. Minimize the four variable logic function using k-map f (A,B,C,D)=Σm(0,1,2,3,5,7,8,9,11,14) (7 marks, 2024-25)
  6. Q2d. Perform the following as mentioned: (i) Convert (63.250)10 to binary number. (ii) Convert (10010.101)2 to decimal number. (iii) Convert (A6B.0F)16 to octal number. (iv) Perform subtraction using 2's complement (111-1010)2. (v) Design AND, OR, and NOT gates using only NOR gates. (7 marks, 2023-24)
  7. Q6a. Simplify the following function using K-map F(A, B, C, D) = Σ(1, 3, 4, 5, 6, 7, 9, 11, 13, 15). Also implement the simplified function using basic gates only. (7 marks, 2023-24)
  8. Q6b. Realize NOT, AND, OR and XOR gates using NAND gate. (7 marks, 2023-24)
  9. Q2d. Define Universal Gates. Implement AND, OR, NOR by using NAND gates only. (7 marks, 2022-23)
  10. Q1f. Find 1's and 2's complement of 10011010. (2 marks, 2024-25)

AKTU paper codes: BEC101, BEC201, KEC101, KEC201

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