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Digital Computer Electronics

Digital Computer Electronics
A NOR gate recognizes only the input word whose bits are _____

1's
0's or 1's
None of these
0's
0's and 1's

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Digital Computer Electronics
An AND gate has 7 inputs. How many input word are in its truth table?

32
64
None of these
16
128

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Digital Computer Electronics
The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output

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

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Digital Computer Electronics
The number of binary bits required to represent a hexadecimal digit is

3
8
6
4
None of these

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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

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

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Digital Computer Electronics
ASCII and EBCDIC differ in

their efficiency in storing data
the number of bytes used to store characters
None of these
the random and sequential access method
their collecting sequences

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