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Digital Electronics

Digital Electronics
1’s complement of 17 is

 10111.
 10001.
  01110.
 11100.

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 0001111
 100111
 001000
 101001

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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

 64 × 4
 16 × 16
 32 × 8
 256 × 1

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 OR
 NOR
 NAND
 none of these

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Digital Electronics
A bubbled AND gate is equivalent to a

 NOR gate
 X-OR gate
 NAND gate
 OR gate

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 8
 10
 16
 12

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