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Digital Computer Electronics

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

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

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Digital Computer Electronics
Conversion of binary number 1011012 to hexadecimal is

20000000000000000
2716
2D16
None of these
3716

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Digital Computer Electronics
Conversion of an octal number 1068 to binary number is

10001102
100001102
11100102
11001102
None of these

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Digital Computer Electronics
Conversion of an octal number 1258 to its decimal number is

8710
8510
9910
None of these
9010

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Digital Computer Electronics
The NOR gate is logically equivalent to an OR gate followed by an _____

inverter
XOR
AND
None of these
XAND

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Digital Computer Electronics
What table shows the electrical state of a digital circuit's output for every possible combination of electrical states in the inputs?

None of these
Routing table
Function table
ASCII table
Truth table

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