Sikkim-Manipal University of Health Medical and Technological Sciences (SMUHMTS) 2009 B.C.A Computer Application BC0036 Digital SystemsAssignment - Question Paper
BC0036 Digital Systems August Assignment
August 2009
Bachelor of Computer Application (BCA) Semester 1
BC0036 Digital Systems 4 Credits
(Book ID: B0680)
Assignment Set 1 (60 Marks)
Each question carries ten marks 6 x 10 = 60
1. convert the following octal number to decimal
a) 356.24(8)
b) 2335(8)
c) 0.2674(8)
d) 5324.77(8)
2. Discuss universal gates
3. Reduce the following expression using K map and implement using universal gate.
a) f =
b) f= 
- Describe the operations performed by the following arithmetic circuits.
- Half adder
- Full adder
- Decoder
- Mux
- Write a short note on the factors which affects the selection of ADCs.
- Explain Decimal to BCD encoder.
August 2009
Bachelor of Computer Application (BCA) Semester 1
BC0036 Digital Systems 4 Credits
(Book ID: B0680)
Assignment Set 2 (60 Marks)
Each question carries ten marks 6 x 10 = 60
1. Represent the following 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 following conditions:
x is 0 if any two of the three variables are 1. x is 1 for all other conditions.
3. Implement the following SOP expressions.
- f = ∑(2,4,6,7,10,14,15)
- f = ∑(2,3, 6,7,14)
- f = ∑(1, 2,3,6,8,10,12,13,14)
- f = ∑(1,5,7,9,10,11,13,15)
4.Obtain the set of prime implicants for f= 
.
5. Explain a basic three bit up/down synchronous counter.
6. Explain the working of Toggle flip-flop.
| Earning: Approval pending. |
