TTL is used in electronic calculators.
Answer: B
Calculators use CMOS.
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The total number of input words for 4 input OR gate is
Answer: B
No Explanation.
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Assertion (A): The output of a NOR gate is equal to the complement of OR of input variables.
Reason (R): A XOR gate is a universal gate.
Answer: C
XOR gate is not a universal gate.
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Which of the following is error correcting code?
Answer: C
Hamming code is widely used for error correction.
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The number of address lines in EPROM 4096 x 8 is
Answer: D
No Explanation.
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Decimal number 46 in excess 3 code =
Answer: B
Decimal 46 in excess 3 code = 46 + 33 = 79 in decimal = 0111 1001 in 4 bit binary.
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The number of digits in octal system is
Answer: A
The octal system has 8 digits 0 to 7.
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The first machine cycle of an instruction is always
Answer: B
Fetch cycle is always first machine cycle.
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A carry look ahead adder is frequently used for addition because
Answer: B
In look ahead carry adder the carry is directly derived from the gates when original inputs are being added. Hence the addition is fast. This process requires more gates and is costly.
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