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Digital Electronics

Digital Electronics
Combinations that are not listed for the input variables are

 Overflow
 Carry
 Borrow
 Don't Care

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Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 6
 8
 9
 7

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NOR
 X-OR
 AND
 NAND

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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
(11011) 2 in BCD 8421 code is

 01101100
 00100111
 11011001
 00011011

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Digital Electronics
F’s complement of (2BFD)Hex is

 D402
 C403
 E304
 D403

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