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Digital Electronics

Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 NAND
 NOR
 X-NOR
 AND

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 10
Base 8
Base 16
Base 3

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Digital Electronics
Unit distance code is the other name of

 sequential code
 self-complementing code
 cyclic code
 XS-3 code

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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

 6
 8
 2
 4

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Digital Electronics
The decimal equivalent of hexadecimal number of 2A0F is

 17067
 17670
 10767
 17607

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 128
 255
 8
 256

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