Digital Logic
Boolean Algebra
Marks 1Marks 2Marks 5
Combinational Circuits
Marks 1Marks 2
Number Systems
Marks 1Marks 2
Sequential Circuits
Marks 1Marks 2Marks 5
1
GATE CSE 2004
MCQ (Single Correct Answer)
+2
-0.6
Consider a multiplexer with $$X$$ and $$Y$$ as data inputs and $$Z$$ as control input. If $$z=0$$ select input $$x,$$ and $$z=1$$ selects input $$Y$$. what are the connections required to realize the $$2-$$variable Boolean function $$f=T+R$$ without using any additional Hardware?
A
$$R$$ to $$X,$$ $$1$$ to $$Y,$$ $$T$$ to $$Z$$
B
$$T$$ to $$X,$$ $$R$$ to $$Y,$$ $$T$$ to $$Z$$
C
$$T$$ to $$X,$$ $$R$$ to $$X,$$ $$O$$ to $$Z$$
D
$$R$$ to $$X,$$ $$O$$ to $$Y,$$ $$T$$ to $$Z$$
2
GATE CSE 2003
MCQ (Single Correct Answer)
+2
-0.6
The literal count of a Boolean expression is the sum of the number of times each literal appears in the expression. For example, the literal count of $$(xy + xz)$$ is $$4.$$ What are the minimum possible literal counts of the product -of -sum and sum -of-product representations respectively of the function given by the following Karnaugh map? Here, $$X$$ denotes “don’t care” GATE CSE 2003 Digital Logic - K Maps Question 8 English
A
$$(11, 9)$$
B
$$(9,13)$$
C
$$(9,10)$$
D
$$(11, 11)$$
3
GATE CSE 2000
MCQ (Single Correct Answer)
+2
-0.6
Which function does NOT implement the Karnaugh map given below? GATE CSE 2000 Digital Logic - K Maps Question 9 English
A
$$(w+x)y$$
B
$$x\,y + y\,w$$
C
$$\left( {w + x} \right)\,\,\left( {\overline w + y} \right)\left( {\overline x + y} \right)$$
D
None of the above
4
GATE CSE 1996
MCQ (Single Correct Answer)
+2
-0.6
What is the equivalent Boolean expression in product-of-sums form for the Karnaugh map given in fig? GATE CSE 1996 Digital Logic - K Maps Question 10 English
A
$$B\,\overline D + \overline B \,D$$
B
$$\left( {B + \overline C + D} \right)\left( {\overline B + C + \overline D } \right)$$
C
$$\left( {B + D} \right)\left( {\overline B + \overline D } \right)$$
D
$$\left( {B + \overline D } \right)\left( {\overline B + D} \right)$$
GATE CSE Subjects
Theory of Computation
Operating Systems
Algorithms
Digital Logic
Database Management System
Data Structures
Computer Networks
Software Engineering
Compiler Design
Web Technologies
General Aptitude
Discrete Mathematics
Programming Languages
Computer Organization