Digital Logic

• Chapter 1: Number Systems and Conversions. Notes and past questions on Number Systems and Conversions for TU BIT Digital Logic.
• Chapter 2: Boolean Algebra and Logic Gates. Notes and past questions on Boolean Algebra and Logic Gates for TU BIT Digital Logic.
• Chapter 3: Combinational Logic Simplification. Notes and past questions on Combinational Logic Simplification for TU BIT Digital Logic.
• Chapter 4: Combinational Logic Circuits. Notes and past questions on Combinational Logic Circuits for TU BIT Digital Logic.
• Chapter 5: Decoders and Encoders. Notes and past questions on Decoders and Encoders for TU BIT Digital Logic.
• Chapter 6: Multiplexers and Demultiplexers. Notes and past questions on Multiplexers and Demultiplexers for TU BIT Digital Logic.
• Chapter 7: Programmable Logic Devices. Notes and past questions on Programmable Logic Devices for TU BIT Digital Logic.
• Chapter 8: Flip-Flops and Latches. Notes and past questions on Flip-Flops and Latches for TU BIT Digital Logic.
• Chapter 9: Sequential Circuits and Counters. Notes and past questions on Sequential Circuits and Counters for TU BIT Digital Logic.
• Chapter 10: Shift Registers and Data Processing. Notes and past questions on Shift Registers and Data Processing for TU BIT Digital Logic.

• Design a combinational circuit with three inputs. The output is 1 when the binary value of the input is odd.[10] (2081)
• Define magnitude comparator?Design a 4-bit magnitude comparator circuit.[2+8] (2081)
• What is counter?Design a 3-bit synchronous up-down counter along with state diagram and timing sequence.[2+8] (2081)
• Convert (257)₈ into hexadecimal and decimal number system. [5] (2081)
• Perform following arithmetic operation: a) $101101 + 011011$ b) $101111 - 010101$ [5] (2081)
• Simplify (using K-map): F=(A+B+C+D′)(A+B+C′+D)(A+B′+C′+D′)(A+B′+C′+D)(A′+B′+C′+D)(A′+B+C+D′)(A′+B+C′+D)F = (A + B + C + D')(A + B + C' +... (2081)
• Define multiplexer. Implement 8 × 1 multiplexer using 2 × 1 multiplexer. [1+4] (2081)
• What is Flip Flop? Differentiate between Combinational circuit and Sequential Circuit. [2+3] (2081)
• Realize JK flip-flop from RS flip-flop. [5] (2081)
• Define shift register. Explain the operation of 4-bit Serial-In Serial-Out Shift register with data input 1011. [1+4] (2081)
• Define shifter. Design a 4-bit shifter circuit. [1+4] (2081)
• Write short notes on: a) De-Multiplexer b) Excitation table [0+2.5+2.5] (2081)
• Define BCD code. Design BCD to Excess-3 Code converter with truth table and logic diagram.[10] (2080)
• Define combinational logic circuit. Design a combinational circuit whose input is a four-bit number and output is the 1's complement of t... (2080)
• Define parallel counter. Design MOD-12 synchronous up counter along with state diagram, timing sequence and timing diagram.[10] (2080)

Frequently asked questions

Based on the official syllabus.