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Digital Electronics

Digital Electronics
Which number system has a base of 16

 None
 Hexadecimal
 Octal
 Decimal

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Digital Electronics
EBCDIC code is a

 5-bit code
 8-bit code
 7-bit code
 10-bit code

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Digital Electronics
The 1’s complement of 11010111 is

 10101000
 11101000
 10101000
 00101000

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system.

 1 V and -5 V
 –1.5 V and – 5 V
 0 V and 5 V
 5 V and 0 V

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Digital Electronics
An any or all gate is the other name of

 X-OR gate
 AND gate
 OR gate
 X-NOR gate

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 None of these
 +2n-1,-(2n-1-1)
 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1

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