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Digital Computer Electronics

Digital Computer Electronics
An OR gate has 6 inputs. How many input words are in its truth table?

64
16
128
32
None of these

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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.

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

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Digital Computer Electronics
Subtraction of 1001011002 from 11101010102 is

11110111112
None of these
10010111102
11110000012
1101000012

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Digital Computer Electronics
Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH

None of these
63
32
38
16

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Digital Computer Electronics
What is the 1's complement of 0000 1111 0010 1101 number?

1001 0010 1010 1100
1111 1100 1010 1100
1111 0000 0010 1101
None of these
1111 0000 1101 0010

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Digital Computer Electronics
A half-adder adds _____ bits

10
2
8
None of these
16

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