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Digital Electronics

Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

AND gate
None of these
OR gate
NOT gate

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Digital Electronics
The implicants which will definitely occur in the final expression are called

 selective prime implicants
 essential prime implicants
 prime implicants
 redundent prime implicants

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Digital Electronics
A multiplexer is a

 N-to-N device
 1-to-N device
 1-to-1 device
 N-to-1 device

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Digital Electronics
9’s complement of 52784630 is

 57316379
 48225469
 47215369
 58326479

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -256 to 256
 -128 to 127
 -256 to 255

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Digital Electronics
An AND gate will function as OR if

Either of the inputs is “1”
All the inputs to the gates are “1”
All the inputs are ‘0’
All the inputs and outputs are complemente'

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