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Digital Electronics

Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 12 bits
 8 bits
 10 bits
 16 bits

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Digital Electronics
While using a frequency counter for measuring frequency, two modes of measurement are possible. 1. Period time 2. Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4Mhz the crossover frequency is given by

 2 Mhz
 8 Mhz
 1 Khz
 2 Khz

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 4
 1
 2
 3

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Digital Electronics
The XS-3 code is a

 error-correcting code
 weighted code
 self-complementing code
 cyclic code

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Digital Electronics
In a read-only memory information can be stored

 in any of the above ways depending upon the type of memory
 by the user only once during its life time
 by the user a number of times
 at the time of fabrication

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Digital Electronics
A multiplexer is a

 1-to-1 device
 N-to-N device
 1-to-N device
 N-to-1 device

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