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Recent activity by varunraj
1
answer
1
Gateforum Test Series: Digital Logic - Prime Implicants
Clearly, there will be two essential prime implicants. Why answer is 3?
Clearly, there will be two essential prime implicants. Why answer is 3?
611
views
answered
Apr 18, 2020
Digital Logic
gateforum-test-series
digital-logic
prime-implicants
+
–
4
answers
2
GATE CSE 1998 | Question: 1.13
What happens when a bit-string is XORed with itself $n$-times as shown: $\left[B \oplus (B \oplus ( B \oplus (B \dots n \text{ times}\right]$ complements when $n$ is even complements when $n$ is odd divides by $2^n$ always remains unchanged when $n$ is even
What happens when a bit-string is XORed with itself $n$-times as shown:$\left[B \oplus (B \oplus ( B \oplus (B \dots n \text{ times}\right]$complements when $n$ is evenco...
10.2k
views
commented
Apr 6, 2020
Digital Logic
gate1998
digital-logic
normal
boolean-algebra
+
–
3
answers
3
GATE IT 2005 | Question: 8
Using Booth's Algorithm for multiplication, the multiplier $-57$ will be recoded as $0$ -$1$ $0$0$ $1$ $0$ $0$ -$1$ $1$ $1$ $0$ $0$ $0$ $1$ $1$ $1$ $0$ -$1$ $0$ $0$ $1$0$ $0$ $0$ $0$ $1$ $0$ $0$ -$1$ $0$ $0$ $1$
Using Booth's Algorithm for multiplication, the multiplier $-57$ will be recoded as$0$ -$1$ $0$$0$ $1$ $0$ $0$ -$1$$1$ $1$ $0$ $0$ $0$ $1$ $1$ $1$$0$ -$1$ $0$ $0$ $1$$0$ ...
8.6k
views
commented
Apr 6, 2020
Digital Logic
gateit-2005
digital-logic
booths-algorithm
normal
+
–
1
answer
4
GATE CSE 1989 | Question: 1-vi
Consider an excess -$50$ representation for floating point numbers with $4$ BCD digit mantissa and $2$ BCD digit exponent in normalised form. The minimum and maximum positive numbers that can be represented are __________ and _____________ respectively.
Consider an excess -$50$ representation for floating point numbers with $4$ BCD digit mantissa and $2$ BCD digit exponent in normalised form. The minimum and maximum posi...
3.9k
views
commented
Apr 3, 2020
Digital Logic
descriptive
gate1989
digital-logic
number-representation
floating-point-representation
+
–
1
answer
5
Digital Logic: GATE 2013 EE
The clock frequency applied to the digital circuit shown in the figure below is 1 kHz. If the initial state of the output Q of the flip-flop is ‘0’, then the frequency of the output waveform Q in kHz is 0.25 0.5 1 2
The clock frequency applied to the digital circuit shown in the figure below is 1 kHz. If the initial state of the output Q of the flip-flop is ‘0’, then the frequenc...
3.9k
views
answered
Apr 2, 2020
Digital Logic
gate2013-dl-ee
flip-flop
digital-logic
+
–
2
answers
6
GATE CSE 2001 | Question: 11
A sequential circuit takes an input stream of $0's$ and $1's$ and produces an output stream of $0's$ and $1's.$ Initially it replicates the input on its output until two consecutive $0's$ are encountered on the input. From then ... Give the minimized sum-of-product expression for $\text{J}$ and $\text{K}$ inputs of one of its state flip-flops
A sequential circuit takes an input stream of $0's$ and $1's$ and produces an output stream of $0's$ and $1's.$ Initially it replicates the input on its output until two ...
5.3k
views
commented
Mar 23, 2020
Digital Logic
gatecse-2001
digital-logic
normal
descriptive
flip-flop
+
–
17
answers
7
GATE CSE 2004 | Question: 62
A 4-bit carry look ahead adder, which adds two 4-bit numbers, is designed using AND, OR, NOT, NAND, NOR gates only. Assuming that all the inputs are available in both complemented and uncomplemented forms and the delay of each gate is one time ... the carry network has been implemented using two-level AND-OR logic. 4 time units 6 time units 10 time units 12 time units
A 4-bit carry look ahead adder, which adds two 4-bit numbers, is designed using AND, OR, NOT, NAND, NOR gates only. Assuming that all the inputs are available in both com...
32.8k
views
answered
Jan 14, 2020
Digital Logic
gatecse-2004
digital-logic
normal
adder
+
–
1
answer
8
About 90+ marks in gate cs
Why hasn't anyone got 90+ marks in the GATE-CS till now ?Is there any possibility to score more than 90+ marks in CS ?what are the ways to achieve it ,while other branch people are achieving?
Why hasn't anyone got 90+ marks in the GATE-CS till now ?Is there any possibility to score more than 90+ marks in CS ?what are the ways to achieve it ,while other branch ...
3.7k
views
asked
Apr 12, 2019
Study Resources
gate-preparation
study-resources
career-advice
preparation
exam-stress
+
–
4
answers
9
GATE IT 2005 | Question: 39
Consider the regular grammar: $S \rightarrow Xa \mid Ya$ $X \rightarrow Za$ $Z \rightarrow Sa \mid \epsilon$ $Y \rightarrow Wa$ $W \rightarrow Sa$ where $S$ is the starting symbol, the set of terminals is $\{a\}$ and the set of non-terminals is ... automaton (DFA) to recognize the same language. What is the minimum number of states required for the DFA? $2$ $3$ $4$ $5$
Consider the regular grammar:$S \rightarrow Xa \mid Ya$$X \rightarrow Za$$Z \rightarrow Sa \mid \epsilon$$Y \rightarrow Wa$$W \rightarrow Sa$where $S$ is the starting sym...
12.2k
views
commented
Mar 22, 2018
Theory of Computation
gateit-2005
theory-of-computation
finite-automata
normal
+
–
1
answer
10
theory of computation
$\text{Recursive languages are also called type 0 languages. state true or false with explanation}$
$\text{Recursive languages are also called type 0 languages. state true or false with explanation}$
658
views
commented
Mar 21, 2018
Theory of Computation
theory-of-computation
+
–
1
answer
11
theory of computation
Let $L=\{w \in \{0,1\}^∗\mid \text{number of occurences of }(110)=\text{number of occurences of } (011)\}$ What is $L$?
Let $L=\{w \in \{0,1\}^∗\mid \text{number of occurences of }(110)=\text{number of occurences of } (011)\}$What is $L$?
654
views
commented
Mar 21, 2018
Theory of Computation
theory-of-computation
regular-expression
+
–
1
answer
12
Gate2018_model_paper
What's is correct answer and how did u find it?
What's is correct answer and how did u find it?
457
views
commented
Mar 21, 2018
Theory of Computation
theory-of-computation
theory-of-computation
+
–
3
answers
13
GATE CSE 1987 | Question: 12-a
The Boolean expression $A \oplus B \oplus A$ is equivalent to $AB + \overline {A}\;\;\overline B$ $\overline{A}\;B+A\;\overline{B}$ $B$ $\overline{A}$
The Boolean expression $A \oplus B \oplus A$ is equivalent to$AB + \overline {A}\;\;\overline B$$\overline{A}\;B+A\;\overline{B}$$B$$\overline{A}$
4.3k
views
answered
Mar 20, 2018
Digital Logic
gate1987
digital-logic
boolean-algebra
easy
+
–
3
answers
14
GATE CSE 1987 | Question: 16-a
A Boolean function $f$ is to be realized only by $\text{NOR}$ gates. Its $K$-map is given below: The realization is
A Boolean function $f$ is to be realized only by $\text{NOR}$ gates. Its $K$-map is given below:The realization is
4.2k
views
answered
Mar 20, 2018
Digital Logic
gate1987
digital-logic
k-map
+
–
2
answers
15
finite automata
Draw the DFA for (a*b +b*a)
Draw the DFA for (a*b +b*a)
599
views
commented
Mar 17, 2018
Theory of Computation
theory-of-computation
finite-automata
+
–
2
answers
16
theory of computation
Let L = {anbn : n ≥ 0}...Is complement of the language L , DCFL or not ??? please explain your answer ...I feel it is a DCFL ...
Let L = {anbn : n ≥ 0}...Is complement of the language L , DCFL or not ??? please explain your answer ...I feel it is a DCFL ...
433
views
commented
Mar 17, 2018
Theory of Computation
theory-of-computation
regular-expression
context-free-language
+
–
14
answers
17
GATE CSE 2012 | Question: 12
What is the complement of the language accepted by the NFA shown below? Assume $\Sigma = \{a\}$ and $\epsilon$ is the empty string. $\phi$ $\{\epsilon\}$ $a^*$ $\{a , \epsilon\}$
What is the complement of the language accepted by the NFA shown below?Assume $\Sigma = \{a\}$ and $\epsilon$ is the empty string.$\phi$$\{\epsilon\}$$a^*$$\{a , \epsilon...
19.4k
views
answered
Mar 16, 2018
Theory of Computation
gatecse-2012
finite-automata
easy
theory-of-computation
+
–
2
answers
18
GATE CSE 1998 | Question: 4
Design a deterministic finite state automaton (using minimum number of states) that recognizes the following language: $L=\{w \in \{0, 1\}^* \mid w$ interpreted as binary number (ignoring the leading zeros) is divisible by five $\}.$
Design a deterministic finite state automaton (using minimum number of states) that recognizes the following language:$L=\{w \in \{0, 1\}^* \mid w$ interpreted as binar...
11.8k
views
answered
Mar 16, 2018
Theory of Computation
gate1998
theory-of-computation
finite-automata
normal
minimal-state-automata
descriptive
+
–
4
answers
19
equality of regular expressions
Q) which of the following pair of regular expressions are equal a)(0+1)* & 0* + 1* b)∅* & ∅* c)0(120)*12 & 01(201)*2 d)None of the above answer given is option C which i got why.The problem is what is wrong with option B deemed to be true?? .also is 010 present in 0* +1*?? .
Q)which of the following pair of regular expressions are equala)(0+1)* & 0* + 1*b)∅* & ∅*c)0(120)*12 & 01(201)*2d)None of the aboveanswer given is option C wh...
709
views
answered
Mar 16, 2018
Theory of Computation
theory-of-computation
regular-expression
+
–
3
answers
20
equality of regular expressions
Q which of the following pair of regular expressions are equal a)a* & ((aa)* + (aa0)*)* b)(r+s)* & (rs)* c)(rr)* & r*r* d)(r1(r1+r2)*)* & r1(r1+r2) answer given is option D but it think option D should be modified to (r1(r1+r2)*)* & r1*(r1+r2)* for being it correct.
Qwhich of the following pair of regular expressions are equala)a* & ((aa)* + (aa0)*)*b)(r+s)* & (rs)*c)(rr)* & r*r*d)(r1(r1+r2)*)* & r1(r1+r2)answer given is option D but...
620
views
answered
Mar 16, 2018
Theory of Computation
theory-of-computation
regular-expression
+
–
6
answers
21
which one is correct ?
Consider R1 and R2 are two regular expression then equality of two regular expression compute in A) polynomial time B) Exponential time C) logarithmic Polynomial time D) Constant Time
Consider R1 and R2 are two regular expression then equality of two regular expression compute inA) polynomial time B) Exponential timeC) logarithmic Polynomial time D...
1.2k
views
commented
Mar 16, 2018
Theory of Computation
regular-expression
+
–
7
answers
22
GATE CSE 1998 | Question: 1.12
The string $1101$ does not belong to the set represented by $110^*(0 + 1)$ $1(0 + 1)^*101$ $(10)^*(01)^*(00 + 11)^*$ $(00 + (11)^*0)^*$
The string $1101$ does not belong to the set represented by$110^*(0 + 1)$$1(0 + 1)^*101$$(10)^*(01)^*(00 + 11)^*$$(00 + (11)^*0)^*$
23.3k
views
answered
Mar 16, 2018
Theory of Computation
gate1998
theory-of-computation
regular-expression
easy
multiple-selects
+
–
4
answers
23
GATE CSE 2014 Set 1 | Question: 36
Which of the regular expressions given below represent the following DFA? $0^*1(1+00^*1)^* $ $0^*1^*1+11^*0^*1 $ $(0+1)^*1$ I and II only I and III only II and III only I, II and III
Which of the regular expressions given below represent the following DFA?$0^*1(1+00^*1)^* $$0^*1^*1+11^*0^*1 $$(0+1)^*1$I and II onlyI and III onlyII and III onlyI, II an...
19.0k
views
answered
Mar 16, 2018
Theory of Computation
gatecse-2014-set1
theory-of-computation
regular-expression
finite-automata
easy
+
–
8
answers
24
GATE CSE 1997 | Question: 6.4
Which one of the following regular expressions over $\{0,1\}$ denotes the set of all strings not containing $\text{100}$ as substring? $0^*(1+0)^*$ $0^*1010^*$ $0^*1^*01^*$ $0^*(10+1)^*$
Which one of the following regular expressions over $\{0,1\}$ denotes the set of all strings not containing $\text{100}$ as substring?$0^*(1+0)^*$$0^*1010^*$$0^*1^*01^*$$...
37.5k
views
answered
Mar 16, 2018
Theory of Computation
gate1997
theory-of-computation
regular-expression
normal
+
–
10
answers
25
GATE CSE 2010 | Question: 39
Let $L=\{ w \in \:(0+1)^* \mid w\text{ has even number of }1s \}$. i.e., $L$ is the set of all the bit strings with even numbers of $1$s. Which one of the regular expressions below represents $L$? $(0^*10^*1)^*$ $0^*(10^*10^*)^*$ $0^*(10^*1)^*0^*$ $0^*1(10^*1)^*10^*$
Let $L=\{ w \in \:(0+1)^* \mid w\text{ has even number of }1s \}$. i.e., $L$ is the set of all the bit strings with even numbers of $1$s. Which one of the regular express...
22.4k
views
answer edited
Mar 16, 2018
Theory of Computation
gatecse-2010
theory-of-computation
regular-expression
normal
+
–
1
answer
26
regular expression
L belongs to ∅,(∈) and ∑* correct or not
L belongs to ∅,(∈) and ∑* correct or not
323
views
commented
Mar 15, 2018
Theory of Computation
theory-of-computation
regular-expression
self-doubt
+
–
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