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Digital Electronics

Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 65536
 32
 1024
 16

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

120 CPS
10 CPS
12 CPS
None of these

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Digital Electronics
Which of the following codes is known as the 8421 code?

 Gray code
 XS-3 code
 BCD code
 ASCII code

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Digital Electronics
The 1’s complement of 11010111 is

 11101000
 10101000
 10101000
 00101000

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

 255
 8
 128
 256

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Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 OR
 AND
 NOR
 NAND

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