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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 1438 to its decimal number is

10710
97110
None of these
9010
9910

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Digital Computer Electronics
A NOR gate recognizes only the input word whose bits are _____

0's and 1's
0's or 1's
1's
None of these
0's

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Digital Computer Electronics
A half-adder is also known as:

EX-OR circuit
NAND circuit
NOR circuit
AND circuit
None of these

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Digital Computer Electronics
Express 8192 in K units.

8.192 k
8K
8 x 103 K
None of these
All of these

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Digital Computer Electronics
What logic function is obtained by adding an inverter to the output of an AND gate?

NOR
None of these
NAND
XOR
OR

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Digital Computer Electronics
A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.

hexa, sign
negative, positive
None of these
sign, hexa
positive, negative

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