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Digital Computer Electronics

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

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

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

8C
None of these
9E
All of these
AF

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Digital Computer Electronics
The octal equivalent of decimal 324.987 is

None of these
90.987
815.234
504.771
640.781

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Digital Computer Electronics
Which of the following is not functionally a complete set?

NAND
AND, OR, NOT
None of these
AND, OR
NOR

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Digital Computer Electronics
Conversion of decimal number 7110 to it's binary number equivalent is

1100112
1100112
11100112
None of these
10001112

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Digital Computer Electronics
Conversion of binary number 111112 to an octal number is

378
None of these
328
428
358

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