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Digital Computer Electronics

Digital Computer Electronics
Express -7 as 16-bit signed binary numbers.

0111 0000 0000 0000
0000 0000 0000 0111
0111 0000 0000 0001
None of these
1000 0000 0000 0111

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

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

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Digital Computer Electronics
Parallel adders are

combinational logic circuits
both of the above
sequential logic circuits
None of these
All of these

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Digital Computer Electronics
Conversion of binary number 10010102 to to its decimal number is

None of these
7410
6310
9710
7210

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

None of these
32
64
128
16

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

D9F816
D8F916
A8B916
A1716
None of these

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