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Digital Computer Electronics

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

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

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Digital Computer Electronics
The hexadecimal digits are 0 to 9 and A to _____

D
E
G
F
None of these

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

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

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Digital Computer Electronics
Conversion of an octal number 608 to binary number is

11001102
1100002
11001112
None of these
100112

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Digital Computer Electronics
The number of two-input NAND gates required to produce the two-input OR function is

3
1
2
4
None of these

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Digital Computer Electronics
Conversion of decimal number 6110 to it's binary number equivalent is

1111012
110011102
None of these
1100112
111112

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