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Digital Computer Electronics

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

NOR
NAND
OR
XOR
None of these

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Digital Computer Electronics
The logic 1 in positive logic system is represented by:

higher voltage level
None of these
negative voltage
zero voltage
lower voltage level

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

AF
8C
None of these
All of these
9E

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Digital Computer Electronics
With a NAND latch a low R and a low S produce a _____ condition.

race
no change
reset
None of these
set

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

XOR
NAND
OR
None of these
NOR

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Digital Computer Electronics
Parallel adders are

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

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