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Digital Computer Electronics

Digital Computer Electronics
The output of the following gate is 0 only if at least one of the inputs is 1:

AND gate
EX-OR gate
NOR gate
OR gate
None of these

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

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

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

NAND
OR
XOR
None of these
NOR

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Digital Computer Electronics
Conversion of binary number 11011001111110002 to hexadecimal number is

A8B916
D8F816
None of these
D9F816
78916

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Digital Computer Electronics
Conversion of hexadecimal number 6B216 to it's binary number equivalent is

11110001101112
110101100102
1100110011112
None of these
111111112

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Digital Computer Electronics
A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

None of these
0's
some low and some high
high
low

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