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Digital Computer Electronics

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

NOR
OR
None of these
XOR
NAND

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Digital Computer Electronics
The inverter OR gate and AND gate are called decision-making elements because they can recognize some input _____ while disregarding others. A gate recognizes a word when its output is _____

bytes, high
bytes, low
None of these
words, high
character, low

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Digital Computer Electronics
The Gray code for decimal 7 is

100
111
1011
None of these
101

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

101000.0011
101001.11
101000.01
10111.0011
None of these

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Digital Computer Electronics
The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

None of these
XY + YZ
X + Y + Z
X + YZ
XZ + Y

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Digital Computer Electronics
Which logic family dissipates the minimum power?

TTL
CMOS
None of these
DTL
ECL

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