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Digital Electronics

Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 DRAM
 Both SRAM and DRAM
 None
 SRAM

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NAND
 NOR
 AND
 X-NOR

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Digital Electronics
The decimal number 0.246 in binary is

 0.001111
 0.010111
 0.011011
 0.001101

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Digital Electronics
A 15-bit Hamming code requires

 5 parity bits
 15 parity bits
 4 parity bits
 none of these.

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Digital Electronics
It is desired to have a 64 × 8 ROM. The ROMs available are of 16 × 4 size. The number of ROMs required will be

 8
 2
 4
 6

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 X-OR gate followed by an inverter
 complement of a NOR gate
 inverter followed by an X-OR gate
 NOT gate followed by a NOR gate

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