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Digital Electronics

Digital Electronics
A full adder has

 3 inputs, 1 output
 2 inputs, 2 outputs
 3 inputs, 2 outputs
 2 inputs, 1 output

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

 8
 256
 255
 128

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 NOR
 NAND
 OR
 X-OR

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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.
  1 KHz.
 500 Hz.
 2 KHz.

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 48H
 42H
 08H
 50H

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 output
 clearing
 input
 triggering

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