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Digital Electronics

Digital Electronics
The largest positive number that can be stored in a computer that has 16-bit word length and uses two’s complement arithmetic is

 32,768
 32,767
 65,536
 32

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

128
6
64
32

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 250 Hz.
 2 KHz.
 500 Hz.
  1 KHz.

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

 NAND
 NOR
 OR
 none of these

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Digital Electronics
Which of the following represents (E3)16 ?

 (1BC)16-(DE)16
 (2BC)16-(1DE)16
 (1CE)16+(A2)16
 (200)16-(11D)16

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I)&(IV)
 Both (I) & (II)
 Only (II)
 Both (II)&(III)

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