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Digital Electronics

Digital Electronics
A + Ā is equal to

 A
 1
 0
 Ā

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Digital Electronics
In Boolean algebra, OR is represented by

 -
 +
 ×
 /

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 25
 < 6
 < 12
 < 20

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Digital Electronics
Fastest memory element is

 ROM
 Hard Drive
 RAM
 Cache

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Digital Electronics
Logic circuits are

 digital circuits
 hybrid circuits
 analog circuits
 none of these

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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 .

  1 KHz.
 250 Hz.
 2 KHz.
 500 Hz.

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