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Digital Electronics

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

 16
 32
 65536
 1024

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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.

10 CPS
12 CPS
None of these
120 CPS

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 x+yz
 x+xyz
 x+y
 y+xz

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 –1.5 V and – 0.5 V
 5 V and 0 V
 1 V and 5 V
 0 V and 5 V

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Digital Electronics
The following code is not a BCD code.

 Gray code
 XS-3 code
 8421 code
 all of these

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Digital Electronics
1 Kilo bits are equal to

 1008 bits
 1012 bits
 1024 bits
 1000 bits

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