IndiaBIX

Electronics and Communication Engineering - Digital Electronics

Exercise : Digital Electronics - Section 7
1.
The counter which require maximum number of FF for a given mod counter is
Ripple counter
BCD counter
Ring counter
Programmed counter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Four inputs A, B, C, D are fed to a NOR gate. The output of NOR gate is fed to an inverter. The output of inverter is
A + B + C + D
A + B + C + D
ABCD
ABCD
Answer: Option
Explanation:

Output = = A + B + C + D.

3.
The content of which of the following determines the state of the CPU at the end of the execute cycle (when the interrupt is recognized)?
  1. Program counter
  2. Processor register
  3. Certain status conditions
Select the correct answer using the codes given below :
1 and 2
2 and 3
1 and 3
1, 2 and 3
Answer: Option
Explanation:

It is the state at which interrupt is recognized program counter and certain status condition.

4.
In a gate output is Low if and only if all inputs are High. The gate is
OR
AND
NOR
NAND
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
With on-chip decoding, n address lines can access
2n memory locations
2n2 memory locations
2n memory locations
n2 memory location
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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