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Digital Computer Electronics

Digital Computer Electronics
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

NOR
None of these
OR
NAND
AND

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Digital Computer Electronics
Which of the following is not functionally a complete set?

AND, OR
NOR
AND, OR, NOT
NAND
None of these

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Digital Computer Electronics
The term sum-of-products in boolean algebra means

The AND function of several OR functions
None of these
The OR function of several AND functions
The AND function of several AND functions
The OR function of several OR functions

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Digital Computer Electronics
Which of the following logic expression is wrong?

1+0+1 = 1
1 + 1=0
None of these
1 + 1 + 1 = 1
1 + 0=1

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Digital Computer Electronics
The maximum number of TTL loads that a TTL device can drive reliably over the specified temperature range is

chip
universal logic circuit
fanout
None of these
bipolar

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Digital Computer Electronics
A multiplexer is also known as

None of these
decoder
data selector
coder
multivibrator

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