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Digital Computer Electronics

Digital Computer Electronics
In which code the successive code characters differ in only one bit position?

8421 code
excess 3 code
algebraic code
gray code
None of these

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Digital Computer Electronics
In which of the following adder circuits, the carry look ripple delay is eliminated?

Half adder
Carry-look-ahead adder
Full adder
Parallel adder
None of these

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Digital Computer Electronics
Conversion of decimal number 6710 to it's octal number equivalent is

1098
1038
998
1008
None of these

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Digital Computer Electronics
Conversion of decimal number 1310 to it's octal number equivalent is

178
158
None of these
118
138

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Digital Computer Electronics
Which of the following Boolean algebra rules is wrong?

0 + A = A
1 . x = 1
None of these
A + A = A
1 + A = 1

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Digital Computer Electronics
The 2's compliment of binary number 010111.1100 is

101001.11
101000.0011
None of these
10111.0011
101000.01

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