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Digital Computer Electronics

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

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

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Digital Computer Electronics
The number of input words in a truth table always equals _____ where n is the number of inputs bits.

10n
4n
8n
None of these
2n

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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 how much time has elapsed since the system was turned on
to carry serial data signals
to tell the time of the day
None of these

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Digital Computer Electronics
The 2's compliment of binary number 010111.1100 is

101000.0011
10111.0011
101000.01
101001.11
None of these

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Digital Computer Electronics
The 2-input XOR gate has a high output only when the input bits are _____

high
None of these
different
low
even

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Digital Computer Electronics
One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _____ map.

Karnaugh
Schottky
De Morgan
Standard
None of these

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