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Digital Electronics

Digital Electronics
The universal gate is ___________

OR gate
AND gate
None of these
NAND gate

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Digital Electronics
Most of the digital computers do not have floating point hardware because

It is not possible to perform floating point addition by hardware
Floating point hardware is costly
It is slower than software
Of no specific reason

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Digital Electronics
A bubbled AND gate is equivalent to a

 NOR gate
 OR gate
 X-OR gate
 NAND gate

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Digital Electronics
The set of which logic gates is designated as universal gate?

  NOR , NAND.
 NOT, OR , AND.
 XNOR, NOR, NAND.
 XNOR, NOR, NAND.

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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

 8 Mhz
 2 Mhz
 1 Khz
 2 Khz

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

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

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