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Digital Computer Electronics

Digital Computer Electronics
Which of the following boolean algebra statements represent commutative law

(A+B)+CA+(B+C)
None of these
A+BB+A
(B+C)(A.B)+(A.C)
A+AA

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Digital Computer Electronics
An XOR gate recognizes only words with an _____ number of 1's.

None of these
even
different
All of these
odd

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

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

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Digital Computer Electronics
Small-scale integration, abbreviated _____ refers to fewer than 12 gates on the same chip. Medium-scale integration (MSI) means 12 to 100 gates per chip. And large-scale integration (LSI) refers to more than _____ gates per chip.

SSI, 100
SSI, 75
None of these
SSI, 1000
SSI, 10000

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Digital Computer Electronics
_____ has become the most widely used bipolar family.

DTL
MOS
ECL
TTL
None of these

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Digital Computer Electronics
A shift register can be used for:

All of these
serial to parallel conversion
digital delay line
None of these
parallel to serial conversion

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