Download Question Paper of "Digital Circuits and Logic Designs 2" , Question Paper of BCA 2nd Semester, Subject Code : BSBC - 205, Paper ID 802091, Paper 9

Roll No. .............

MAY 2014

BCA (Sem. – 2nd)

DIGITAL CIRCTITS AND LOGIC DESIGN

SUBJECT  : BC-205(N-2)

Time : 03 Hours

Instruction to Candidates:

1) Section - A is Compulsory.

2) Attempt any Four questions from Section - B.

Section - A

1.      

a.     Define BCD codes?

b.     What is flip flops?

c.      (101.0101)₂=()₁₀

d.     What are Binary counters?

e.      Define error?

f.       What is SISO?

g.     Define flip flop?

h.     Give the commutative Law?

i.       Define MUX?

j.       Give Example Of  SOP and POS form?

Section-B

• 2.     Discuss various types of logic gates ?
• 3.     Explain the working of 3:8 line decoder?
• 4.     Minimize the following expression in sum of product form                                    
•     X= A’B’C’D’+A’B’CD’+AB’C’D’+A’CD+AB’CD’
•     Also Draw the logic circuit.
• 5.     Explain 3 bit up down Asynchronous counter?
• 6.     Explain various error Detecting and Correcting codes?
• 7.     Discuss the working of Jk flip flop?