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Digital Electronics

Digital Electronics
In Boolean algebra, OR is represented by

 /
 ×
 +
 -

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

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

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

 3
 1
 2
 4

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 10101111
 011100001
 11100000
 00011111

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 256 × 1
 16 × 16
 64 × 4
 32 × 8

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Digital Electronics
A 10 bit A/D conveter is used to digitize an analog signal in the 0 to 6 volt. The maximum peak to ripple voltage that can be allowed in the D.C. supply voltage is

  5.85 mV.
  6 mV.
 10 mV.
 5 mV.

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