Digital Logic

• Chapter 1: Binary Systems. Notes and past questions on Binary Systems for TU BSc CSIT Digital Logic.
• Chapter 2: Boolean algebra and Logic Gates. Notes and past questions on Boolean algebra and Logic Gates for TU BSc CSIT Digital Logic.
• Chapter 3: Simplification of Boolean Functions. Notes and past questions on Simplification of Boolean Functions for TU BSc CSIT Digital Logic.
• Chapter 4: Combinational Logic. Notes and past questions on Combinational Logic for TU BSc CSIT Digital Logic.
• Chapter 5: Combinational Logic with MSI and LSI. Notes and past questions on Combinational Logic with MSI and LSI for TU BSc CSIT Digital Logic.
• Chapter 6: Synchronous and Asynchronous Sequential Logic. Notes and past questions on Synchronous and Asynchronous Sequential Logic for TU BSc CSIT Digital Logic.
• Chapter 7: Registers and Counters. Notes and past questions on Registers and Counters for TU BSc CSIT Digital Logic.

• Differentiate between synchronous and asynchronous counter. Design a 3-bit synchronous binary counter using T Flip Flop. Draw its timing... (2081)
• De-Morgan's Law and Boolean Function Simplification (2081)
• Explain design procedure of combinational circuits. Design a combinational circuit with three inputs x, y, and z, and three outputs, A, B... (2081)
• Given A=46 and B=35 represent them in binary and perform A-B using 1's complement method. [5] (2081)
• What is Multiplexer. Design 8 to 1 Multiplexer with low level Multiplexers. [5] (2081)
• Write about D flip flop with necessary circuit, block diagram, characteristic table and equation. [5] (2081)
• Simplify $F(A,B,C,D)=\sum(1,3,4,6,9,11,12,14)$ and realize the equation using NOR gates only. [5] (2081)
• Mention different types of shift registers. Explain SIPO with timing diagram. [5] (2081)
• What is decoder? Describe the 3 to 8 line decoder circuit. [5] (2081)
• Explain state diagram, state table, state reduction and state assignment with suitable example. [5] (2081)
• Design a 2 bit asynchronous binary counter using T Flip Flop. Draw its timing diagram. [5] (2081)
• Write short notes on: Encoder, Error detection codes [5] (2081)
• What is combinational circuit? Design a combinational circuit with four inputs lines that represent a decimal digit in BCD and four outpu... (2080)
• What is asynchronous counter? Design synchronous counter that counts the sequences of 0-1-4-6-7 using T flip-flop.[10] (2080)
• Question Implement the Boolean function $F(P,Q,R,S)=\sum(3,4,6,8,9,14)$ using: a. 8 to 1 multiplexer b. PLA c. Decoder [4+2+2+2] (2080)

Frequently asked questions

Based on the official syllabus.