Download Question Paper of "Digital Circuits and Logic Designs 2" , Question Paper of BCA 2nd Semester, Subject Code : BSBC - 205, Paper ID 802091, Paper 2

Roll No…………

Total No. of Questions: 09

BCA (Sem.-2nd)

DIGITAL CKT. & LOGIC DESIGN

Subject Code: BC-205

Paper ID: [B0209]

Time: 3 Hrs. Max. Marks: 60

INSTRUCTIONS TO CANDIDATE:

1.     Section - A is Compulsory.

2.     Attempt any Four questions from Section - B.

Section – A

1.      

a)     Explain gate propagation delay time.

b)     What are the different minimization techniques?

c)     Reduce the following into SOP and POS from

x m(O, 1, 2, 3, 4, 6, 10, 11, 13) and l:m(O, 2, 4, 6, 10, 11, 12, 14, 15)

d)     Explain Noise margin of a Logic circuit.

e)     Explain Field Effect Transistor as a Switch.

f)      What do you mean by Fan IN and Fan OUT for a digital circuit?

g)     What is the difference between Combinational circuit and sequential circuit?

h)    Convert (0.6875)₁₀  into octal.

i)       What do you mean by non-weighted codes?

j)       Define Character Codes.

Section - B

Q2) Minimize the following Boolean function using Quine Mccluskey' s methods and check with Karnaugh Map reduction method ƒ(A, B, C, D) = ∑ (0, 1, 2, 3, 6, 7, 13, 14).                                                              

Q3) Explain design of synchronous counters.

Q4) Explain code converters.

Q5)  Explain Decoder for binary to gray code.

Q6)  Write all possible groups of eight adjacent ones in a four variable k map.

Q7) Explain up down and programmable counters.