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Digital Electronics

Digital Electronics
What is the gray code for the binary 101011?

 011111
 101011
 111110
 110101

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Digital Electronics
In signed magnitude representation, the binary equivalent of 22.5625 is (the bit before comma represents the sign)

 0,10110.1011
 1,10101.1001
 1,10110.1001
 0,10110.1001

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Digital Electronics
When will be the output of an AND gate is LOW ?

 When all inputs are HIGH
 When any input is LOW
 When all input is LOW
 When any input is HIGH

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 2
 3
 4
 1

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Digital Electronics
The fan put of a 7400 NAND gate is

5TTL
2TTL
8TTL
10TTL

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Digital Electronics
A signed integer has been stored in a byte using 2’scomplement format. We wish to store the same integer in 16-bit word. We should copy the original byte to the less significant byte of the word and fill the more significant byte with

 0
 1
 Equal to the MSB of the original byte
 Complement of the MSB of the original byte

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