Sikkim-Manipal University of Health Medical and Technological Sciences (SMUHMTS) 2009 B.C.A Computer Application BC0036-Digital Systems-Assignment s for fall session - Question Paper

August 2009
Bachelor of Computer Application (BCA) – Semester 1
BC0036 – Digital Systems – four Credits
(Book ID: B0680)
Assignment Set – one (60 Marks)


every ques. carries ten marks six x 10 = 60
1. convert the subsequent octal number to decimal
a) 356.24(8)
b) 2335(8)
c) 0.2674(8)
d) 5324.77(8)

2. Discuss universal gates

3. decrease the subsequent expression using K map and implement using universal gate.
a) f =
b) f=
4. define the operations performed by the subsequent arithmetic circuits.
a. Half adder
b. Full adder
c. Decoder
d. Mux

5. Write a short note on the factors which affects the selection of ADCs.
6. Explain Decimal to BCD encoder.




August 2009

Bachelor of Computer Application (BCA) – Semester 1
BC0036 – Digital Systems – four Credits
(Book ID: B0680)

Assignment Set – two (60 Marks)

every ques. carries ten marks six x 10 = 60

1. Represent the subsequent hexadecimal number into binary.
a) 6AC8.A5(16) b) 544.AB7(16) c) 213BC.10A(16) d) 4576.012(16)
e) 6DE.D0D(16)
2. Write the truth table and a Boolean expression for the subsequent conditions:
x is 0 if any 2 of the 3 variables are 1. x is one for all other conditions.
3. Implement the subsequent SOP expressions.
a. f = ?(2,4,6,7,10,14,15)
b. f = ?(2,3, 6,7,14)
c. f = ?(1, 2,3,6,8,10,12,13,14)
d. f = ?(1,5,7,9,10,11,13,15)
4.Obtain the set of prime implicants for f= .
5. Explain a basic 3 bit up/down synchronous counter.
6. Explain the working of Toggle flip-flop.

Earning:   Approval pending.