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Digital Electronics

Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 256 × 1
 64 × 4
 16 × 16
 32 × 8

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Digital Electronics
The largest positive number that can be stored in a computer that has 16-bit word length and uses two’s complement arithmetic is

 65,536
 32,768
 32,767
 32

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Digital Electronics
When will be the output of a NOT gate is LOW ?

 the input is LOW.
 the input is HIGH and LOW.
None of these
 the input is HIGH.

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Digital Electronics
2-out-of-5 code is

 self-complementing code
 alphanumeric code
 weighted code
 non-weighted code

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 25, 9 and 57 respectively
 -6, -6 and -6 respectively
 -25, -9 and -57 respectively
 -7, -7 and -7 respectively

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Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 00100100
 01100011
 01000100

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