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Digital Computer Electronics

Digital Computer Electronics
Conversion of a octal number 638 to its decimal number is

6110
5710
None of these
5110
5310

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Digital Computer Electronics
Instead of counting with binary numbers, a ring counter uses words that have a single high _____

bit
chip
gate
bytes
None of these

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Digital Computer Electronics
Addition of 1101011012, 1110111012, 0001111112, 1001011012, 1111101112 is

None of these
10001010001012
10010000000102
11110110000102
10110101110102

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

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

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Digital Computer Electronics
Which logic family dissipates the minimum power?

None of these
CMOS
DTL
ECL
TTL

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

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

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