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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 478 to its binary number is

1100112
None of these
11110112
1001112
1100112

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

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

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Digital Computer Electronics
Conversion of an octal number 31378 to it's decimal equivalent is

163210
193110
153110
None of these
163110

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Digital Computer Electronics
Which of the following logic expression is wrong?

1 + 0=1
1 + 1=0
1+0+1 = 1
None of these
1 + 1 + 1 = 1

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Digital Computer Electronics
One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _____ map.

Schottky
None of these
Karnaugh
Standard
De Morgan

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Digital Computer Electronics
An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is _____ An XOR gate can test each received word for parity rejecting words with _____ parity.

high, low
even, odd
odd, even
low, high
None of these

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