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Digital Computer Electronics

Digital Computer Electronics
What logic function is obtained by adding an inverter to the inputs of an AND gate?

None of these
NOR
XOR
OR
NAND

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Digital Computer Electronics
In which code the successive code characters differ in only one bit position?

algebraic code
None of these
8421 code
gray code
excess 3 code

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Digital Computer Electronics
How many full and half-adders are required to add 16-bit numbers?

None of these
1 half-adders, 15 full-adders
4 half-adders, 12 full-adders
16 half-adders, no full-adders
8 half-adders, 8 full-adders

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Digital Computer Electronics
Conversion of binary number 1011012 to hexadecimal is

None of these
2716
20000000000000000
3716
2D16

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Digital Computer Electronics
Conversion of a hexadecimal number 6316 to binary number is

11000112
11001112
11001112
1110112
None of these

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Digital Computer Electronics
What is the 2's-complement representation of -24 in a 16-bit microcomputer?

1111 1111 1110 1000
0000 0000 0001 1000
None of these
1111 1111 1110 0111
0001 0001 1111 0011

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