DISTANCE EDUCATION
M.C.A. DEGREE EXAMINATION, MAY 2017.
First Semester
DIGITAL COMPUTER ORGANIZATION
(2005 to 2010 Calendar Year)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20 100)
1. Convert the following hexadecimal numbers to
equivalent decimal numbers
1A 5B
3A9
6B
6AC
Convert the following decimal number to Binary,
Octal and hexadecimal 4398.
2. Subtract the (22)10 from (55)10 using
complement method.
Perform the following subtractions and check the
result by converting the binary numbers to decimal.
1101-1001
11001-10110
Sub. Code
12
DE-440
2
sp4
3. What are the basic laws of Boolean algebra?
Explain.
Explain the working principle of an Encoder and
draw the circuit diagram.
4. What are sum of products form and product of sum
form of logic expressions? Explain with an example.
Explain Quine Mck Luskey tabulation method with
an example.
5. Explain the half-adder and full-adder functions with
truth table and circuit diagram.
With block diagram, explain the 4-bit parallel
binary adder.
6. With a neat circuit diagram and truth tables
explain the working of master slave flip-flop.
What are static and dynamic RAM? Explain.
7. What are the functions of a shift register? What are
its various types? Explain.
Discuss the working principle of a BCD counter.
8. What do you understand by 'peripheral'? Explain
with examples.
Use a block diagram to explain DMA controller.
How DMA transfer is implemented?