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Digital Electronics

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

 10111100
 01111100
 00111100
 11000100

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Digital Electronics
A half adder is a ________ circuit.

 None
 Sequential
 Both A and B
 Combinational

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Digital Electronics
A byte is equal to ________ bits.

 16
 32
 8
 4

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Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 01100011
 01000100
 00100100

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Digital Electronics
EBCDIC code is a

 5-bit code
 10-bit code
 8-bit code
 7-bit code

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Digital Electronics
16’s complement of BABA is?

 4446
 4445
 4544
 4546

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