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Recent questions tagged digital-logic

7 votes
2 answers
2042
ISRO2007-38
The Hexadecimal equivalent of $01111100110111100011$ is $\textsf{CD73E}$ $\textsf{ABD3F}$ $\textsf{7CDE3}$ $\textsf{FA4CD}$
The Hexadecimal equivalent of $01111100110111100011$ is$\textsf{CD73E}$$\textsf{ABD3F}$$\textsf{7CDE3}$$\textsf{FA4CD}$
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5 votes
1 answer
2044
ISRO2007-35
The output $0$ and $1$ level for TTL Logic family is approximately $0.1$ and $5 \text{ V}$ $0.6$ and $3.5 \text{ V}$ $0.9$ and $1.75 \text{ V}$ $-1.75$ and $0.9 \text{ V}$
The output $0$ and $1$ level for TTL Logic family is approximately$0.1$ and $5 \text{ V}$$0.6$ and $3.5 \text{ V}$$0.9$ and $1.75 \text{ V}$$-1.75$ and $0.9 \text{ V}$
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6 votes
2 answers
2045
ISRO2007-34
Ring counter is analogous to Toggle Switch Latch Stepping Switch S-R flip flop
Ring counter is analogous toToggle SwitchLatchStepping SwitchS-R flip flop
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7 votes
1 answer
2046
ISRO2007-30
$0.75$ decimal system is equivalent to ____ in octal system $0.60$ $0.52$ $0.54$ $0.50$
$0.75$ decimal system is equivalent to ____ in octal system$0.60$$0.52$ $0.54$$0.50$
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9 votes
5 answers
2047
ISRO2007-18
The number of digit 1 present in the binary representation of $3 \times 512 + 7 \times 64 + 5 \times 8 + 3$ is 8 9 10 12
The number of digit 1 present in the binary representation of$3 \times 512 + 7 \times 64 + 5 \times 8 + 3$ is891012
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5 votes
3 answers
2048
ISRO2007-05
The characteristic equation of an $SR$ flip-flop is given by : $Q_{n+1}=S+RQ_n$ $Q_{n+1}=R\bar{Q}_n + \bar{S}Q_n$ $Q_{n+1}=\bar{S}+RQ_n$ $Q_{n+1}=S+\bar{R}Q_n$
The characteristic equation of an $SR$ flip-flop is given by :$Q_{n+1}=S+RQ_n$$Q_{n+1}=R\bar{Q}_n + \bar{S}Q_n$$Q_{n+1}=\bar{S}+RQ_n$$Q_{n+1}=S+\bar{R}Q_n$
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9 votes
5 answers
2049
ISRO2007-04
When two numbers are added in excess-$3$ code and the sum is less than $9$, then in order to get the correct answer it is necessary to subtract $0011$ from the sum add $0011$ to the sum subtract $0110$ from the sum add $0110$ to the sum
When two numbers are added in excess-$3$ code and the sum is less than $9$, then in order to get the correct answer it is necessary tosubtract $0011$ from the sumadd $001...
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7 votes
2 answers
2050
ISRO2007-03
The circuit shown in the given figure is a full adder full subtracter shift register decade counter
The circuit shown in the given figure is afull adderfull subtractershift registerdecade counter
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6 votes
2 answers
2051
ISRO2007-02
The circuit shown in the following figure realizes the function. $(\overline{A+B}+C)(\overline{D}\;\overline{E})$ $(\overline{A+B}+C)(D\overline{E})$ $(A+ \overline{B+C})(\overline{D}E)$ $(A+ B+\overline{C})(\overline{D} \;\overline{E})$
The circuit shown in the following figure realizes the function.$(\overline{A+B}+C)(\overline{D}\;\overline{E})$$(\overline{A+B}+C)(D\overline{E})$$(A+ \overline{B+C})(\o...
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10 votes
4 answers
2052
ISRO2007-01
The Boolean expression $\text{Y = (A}+\overline{\text{B}}+\overline{\text{A}}\text{B})\overline{\text{C}}$ is given by $\text{A}\overline{\text{C}}$ $\text{B}\overline{\text{C}}$ $\overline{\text{C}}$ $\text{AB}$
The Boolean expression $\text{Y = (A}+\overline{\text{B}}+\overline{\text{A}}\text{B})\overline{\text{C}}$ is given by$\text{A}\overline{\text{C}}$$\text{B}\overline{\tex...
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6 votes
1 answer
2056
ISRO2009-19
The switching expression corresponding to $f(\text{A, B, C, D}) = \Sigma(1, 4, 5, 9, 11, 12)$ is BC'D' + A'C'D + AB'D ABC' + ACD + B'C'D ACD' + A'BC' + AC'D' A'BD + ACD' + BCD'
The switching expression corresponding to $f(\text{A, B, C, D}) = \Sigma(1, 4, 5, 9, 11, 12)$ isBC'D' + A'C'D + AB'DABC' + ACD + B'C'DACD' + A'BC' + AC'D'A'BD + ACD' + BC...
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2 votes
2 answers
2063
flip flops
Which of the following flip-flops is free from race condition ? (A) T flip-flop (B) SR flip-flop (C) Master-slave JK flip-flop (D) None of the above
Which of the following flip-flops is free from race condition ?(A) T flip-flop(B) SR flip-flop(C) Master-slave JK flip-flop(D) None of the above
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9 votes
1 answer
2065
ISRO2015-6
The code which uses $7$ bits to represent a character is : ASCII BCD EBCDIC Gray
The code which uses $7$ bits to represent a character is :ASCIIBCDEBCDICGray
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0 votes
1 answer
2066
Morris Mano 4th Edition 3.9 (c) Essential Implicants
I get answer with terms as BC' an AC.The Solution give has A'B'D as well. Is the blue pairing done correct? Are they Prime Implicants too? By def. Prime Implicant should not be part of a group or pair?
I get answer with terms as BC' an AC.The Solution give has A'B'D as well.Is the blue pairing done correct? Are they Prime Implicants too? By def. Prime Implicant should n...
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5 votes
2 answers
2067
ISRO-2013-77
The binary equivalent of the decimal number $42.75$ is $101010 . 110$ $100110 . 101$ $101010 . 101$ $100110 . 110$
The binary equivalent of the decimal number $42.75$ is$101010 . 110$$100110 . 101$$101010 . 101$$100110 . 110$
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2 votes
1 answer
2068
The binary number 10011101 is equal to the hexadecimal number
The binary number 10011101 is equal to the hexadecimal number (a) 103 (b) 76 (c) 67 (d) - 67
The binary number 10011101 is equal to the hexadecimal number (a) 103 (b) 76 (c) 67 (d) - 67
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8 votes
4 answers
2069
ISRO2008-23
A computer uses $8$ digit mantissa and $2$ digit exponent. If $a=0.052$ and $b=28E+11$ then $b+a-b$ will : result in an overflow error result in an underflow error be $0$ be $5.28E$+$11$
A computer uses $8$ digit mantissa and $2$ digit exponent. If $a=0.052$ and $b=28E+11$ then $b+a-b$ will :result in an overflow errorresult in an underflow errorbe $0$be ...
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0 votes
2 answers
2070
Number of flip flops required?
For the counting sequence 100, 200, 300 , 400 , 100 (repeat), the number of flip flops required are ?
For the counting sequence 100, 200, 300 , 400 , 100 (repeat), the number of flip flops required are ?
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