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Digital Computer Electronics

Digital Computer Electronics
The _____ gate has two or more input signals. All inputs must be high to get a high output

OR
None of these
NAND
AND
NOR

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Digital Computer Electronics
The clock signals are used in sequential logic circuits

to synchronize events in various parts of a system
to tell the time of the day
None of these
to carry serial data signals
to tell how much time has elapsed since the system was turned on

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Digital Computer Electronics
An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is _____ An XOR gate can test each received word for parity rejecting words with _____ parity.

high, low
None of these
low, high
even, odd
odd, even

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Digital Computer Electronics
Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output

Q will flip from 0 to 1 and then back to 0
Q will flip from 0 to 1 and then back to 0
Q will flip from 0 to 1
Q will flip from 0 to 1
None of these

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Digital Computer Electronics
De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.

AND
None of these
XOR
XAND
OR

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Digital Computer Electronics
Which function positive logic is equivalent to OR function in negative logic?

None of these
AND
NOT
NOR
OR

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