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DIGITAL ELECTRONICS

Digital Electronics
Which one of the following is 2’s complement of -68?

 00111100
 01111100
 11000100
 10111100

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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

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

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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
 11100000
 011100001
 00011111

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Digital Electronics
The base of the number system for the addition operation 24 + 14 = 41 to be true is

 8
 7
 6
 5

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Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -32 as 11100000
 -89 as 10100111
 -37 as 11011011
 -48 as 11101000

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