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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 1108 to its decimal number is

7210
7310
None of these
7010
11010

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

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

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Digital Computer Electronics
Conversion of binary number 1010000101112 to hexadecimal number is

D8F916
D9F816
A8B916
None of these
A1716

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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.

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

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Digital Computer Electronics
An AND gate has 7 inputs. How many input word are in its truth table?

64
None of these
16
128
32

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Digital Computer Electronics
An AND gate has 7 inputs, what is the only input word that produces a 1 output?

None of these
1110000
1111111
1111

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