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Digital Computer Electronics

Digital Computer Electronics
The output 0 and 1 levels for TTL logic family is approximately

-1.75 and -0.9 V
0.9 and 1.75V
0.1 and 5 V
None of these
0.6 and 3.5 V

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

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

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Digital Computer Electronics
A half-adder is also known as:

AND circuit
NAND circuit
None of these
EX-OR circuit
NOR circuit

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Digital Computer Electronics
Parallel adders are

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

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Digital Computer Electronics
Conversion of decimal number 2810 to it's octal number equivalent is

328
408
None of these
348
368

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

XOR
NOR
None of these
NAND
OR

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