BIT Digital Logic

bitsemester 1

This course familiarizes students with Number System, Digital Design Fundamentals, Understand and Design Functions of Combinational Logic, Sequential Logic (Counters, Registers and Finite State Machine), Memories, Programmable Logic Devices Integrated Circuit Technologies.

semester photo

Chapter Wise Notes Question Banks Syllabus Chapter Wise Questions Viva Practical

Institute of Science and Technology

2077

Bachelor in Information Technology

Digital Logic

BIT103

Full Marks: 60

Pass Marks: 24

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Section A"

Long Answer Questions Attempt any TWO questions.

[2 × 10 = 20]

What is decoder? Design BCD to Decimal Decoder with truth table and logic diagram.

Define combinational logic circuit. Design a combinational circuit whose input is a four-bit number and output is 2's complement of the input number.

What is ring counter? Explain ring counter with diagram, timing sequence and timing diagram.

"Section B"

Short Answer Questions Attempt any EIGHT questions.

[8 × 5 = 40]

Convert (1011.110) into decimal and hexadecimal.

Substract \((1011.11 - 1010.10)\) using 2's and 1's complement.

Express the given function in sum of minterms.

\(F = y'z + wxy' + wzx' + w'x'z'\)

Simplify the Boolean function using don't care conditions d, In sum of products and product of sums form.

\(F(A, B, C, D) = \pi(1,3,7,8,12)\) and \(\pi d(5,10,13,14)\)

Implement a full subtractor with two half subtractors and one OR Gate.

Define SR latch with logic diagram and truth table.

Compare the logic of synchronous counter and ripple counter.

Define shift register with its types.

Write short notes on:

a) Parity generator

b) State diagram