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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 2:3
 2:1
 1:1
 1:2

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Digital Electronics
How many flip flops are required to build a binary counter circuit to count from 0 to 1023?

  10.
  6.
 12.
 24.

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Digital Electronics
The process of entering information in EPROM is commonly known as

 programming
 storing
None of these
 writing

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 none of these
 OR
 NOR
 NAND

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Digital Electronics
The difference between the diagram of a NOR and OR gate is

 OR has got a bubble at its output terminal
 OR is more squared than NOR
 OR is more oval than NOR
 NOR has got a bubble at its output terminal

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Digital Electronics
If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

 0110 is added
 0110 is subtracted
 0011 is added
 0011 is subtracted

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