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Digital Electronics

Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 32
 16
 65536
 1024

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 1, C = 1
 A = 1, B = 1, C = 0
 A = 0, B = 0, C = 0
 A = 1, B = 0, C = 1

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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 1’s complement is used to represent the numbers, then the range will be

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

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output follow input
 the output is LOW
 the output is HIGH
 the output follows clock

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Digital Electronics
The universal gate is ___________

NAND gate
None of these
AND gate
OR gate

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Digital Electronics
Which of the following codes is known as the 8421 code?

 BCD code
 ASCII code
 Gray code
 XS-3 code

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